Just think what have happened if HPL had access to the internet. WOW!
It is, of course, impossible to say with 100% certainty but, given his loathing of the typewriter, it is unlikely HPL would have ever even given the even less organic keyboard his time. He simply found writing anything with such methods to be stultifying, whereas writing longhand was both soothing and stimulating to him....
Tinsel -- on the idea of HPL writing a "full-length" novel... I suppose it depends on what you consider such to be. By the standards of his own day, he wrote three which might be considered such:
The Dream-Quest of Unknown Kadath (1926-1927),
The Case of Charles Dexter Ward (1927) and
At the Mountains of Madness (1931). I don't think Lovecraft would ever have been quite comfortable with a lengthy novel; his sort of writing would be made too diffuse with such length, I think... though for quite some time he did go to longer and longer lengths; the longest being Ward, after which he remained (with a single exception) with the novella length works, as they were perfect for what he was attempting to do.
Still, those three novels pack more into their relatively short space than most "full-length" novels in the field do with much more room... though there are, of course, exceptions....
nigourath: I think that what I've said above partly responds to your own posing of the second question, but in response to the "Was he a great writer or a writer at all...":
First, I don't think there has ever been a question about him being a writer. The man wrote. He wrote copiously. Beyond his fiction, he wrote enormous amounts of essays, a large volume of poetry, and somewhere between 70,000 to 100,000 letters, often of tremendous length. No one I've ever seen has denied he was a writer, though there have been those who denied he was a good (let alone great) writer.
However, the judgment on that seems to be in at this point, and the answer is: not among the very greatest, perhaps, but a "minor great"... yes. The general critical position seems to be leaning that way more and more, and such stalwarts as the Library of America (which tends to only publish major American writers or documents) issued a sizable volume of his work a few years ago, as well as Penguin issuing his work in three volumes marketed not as horror, but as literature... even modern classics. This is a tremendous change from even the time when I discovered his work; even more so since his own time; fittingly, it seems to have followed a not-very-dissimilar pattern to that of his idol and mentor, Edgar Allan Poe, who took quite a long time to receive general acclaim critically as well.
As for the idea of his transcending "standard literature"... I'm not quite certain what you mean by that, but I think there is some truth to the idea (as I understand it), as well as it being in some ways misleading. The truth is he did (as Peter Straub noted) essentially invent his own genre; he extended what could be done with themes, ideas, and even (to some degree) text when it came to weird literature... but he was also one guided by his views on and appreciation for "standard literature"; it informed his own writing to an immense degree, as can be seen if one looks at his own influences with any care. So, at least as far as wishing to transcend standard literature, I rather doubt that is the case; whether he did so in some ways or not is debatable, but I'd say there is at least some merit to the claim. I would argue, however, that he was not alone in his success here, as some of the writers in the field whom he most admired, and even more whom he mentioned in his seminal essay Supernatural Horror in Literature, also did much in that regard. (And it is a genuine pity that so few modern readers are familiar with many of these works; they certainly beat the hell out of the bulk of writing in the field of the past 40-50 years, with some quite notable exceptions....)
His writing is a little bit shocking since it is hard core in terms of evil, yet you would not believe it. One of the areas where he failed was to set a contrast because what happens is that you have nothing to compare the characters against in order to have a greater sense of the situation, but where he does focus, he does it well. What he is talking about is sometimes pure hell evil, and there is a strong sense of age, yet people have turned it into a game in the light of today's standards which has its own new hidden dangers.
I'm not entirely following you here, so I'll ask for a little clarification on some points, and take a certain amount of issue with some others.
1) I have trouble seeing Lovecraft's work as "hard core in terms of evil", really, given that he seldom deals with genuine "good" or "evil" (which he felt were strictly local human values and had no reality beyond that very limited sphere), though his narrators, naturally enough, use the term "evil" fairly frequently by dint of being human and facing something which is inimical to human welfare.
However, if you are meaning that he conveys a sense of what has been called the "dark numinous", an inverted awe and frisson of terror or menace that transcends the physical... I am with you there. Matthew H. Onderdonk once wrote a very good essay on this subject, "Charon -- in Reverse; or, H. P. Lovecraft versus the 'Realists' of Fantasy", originally published in the
Fantasy Commentator for Spring 1948 and later reprinted in issue #3 of
Lovecraft Studies (Fall 1980). I think you might find this of great interest, if you can track down a copy.
2) I am not at all sure what you mean by "One of the areas where he failed was to set a contrast because what happens is that you have nothing to compare the characters against in order to have a greater sense of the situation". Could you perhaps explain a bit more, or give an example or two as an indication?
3) Another which I find interesting is: "there is a strong sense of age, yet people have turned it into a game in the light of today's standards which has its own new hidden dangers". I would entirely agree that there is that "strong sense of age", or what is often called "a feeling of historical depth" to his work, and that there has been a tendency by many, at least since Derleth, to "turn it into a game" (if by "it" you mean the worldview propagated by Lovecraft's fiction), and that this is a grave mistake and disservice to HPL. But I'm curious as to what you mean by it having "its own new hidden dangers". I think I understand what you're getting at, but I'm by no means certain; and I would like to know. I'm inclined to agree with you if I understand you correctly, but either way it would be interesting to have some clarification on the topic.
4) I'm also a little confused by "People can think whatever they want as well, but can anyone think as well as they need to?" That sounds like an opening for a discussion on epistemology, that is: "The branch of philosophy that studies the nature of knowledge, its presuppositions and foundations, and its extent and validity". Is this what you were getting at, or did you mean it specifically in relation to Lovecraft and his works?
At any rate, you've started an interesting discussion, and it is good to see some others' thoughts on this point.
Oh, and Wilum: Yes, that rendition of "The Haunter of the Dark" is an excellent reading. My only complaint about it was that a tiny bit of the text had to be cut due to time constraints when it was originally released as a vinyl recording. Otherwise, it is simply marvelous. I've always wanted to hear the recordings of "The Rats in the Walls" and "The Dunwich Horror" as well....