On rudeness: there was a great Goodreads group, sadly short-lived, called The Source [if memory serves]. The prime mover behind the group moved on to her own site, The Veritable Fount, but it seems to have become defunct after she got some abuse from an idiotic author. Angers me quite a lot, to be honest, as the lady in question (whom I knew only slightly) seemed to have both good judgement and her heart in the right place. The aim of The Source was to give authors (unsure if it was entirely SP) some objective reviews to help sort wheat from chaff, and it (and TVF) was something much needed given the explosion in publishing recently.
One of the best aspects of writing is the co-operative sentiment that pervades (here, at least). Not only is being aggressive a moronic attitude, it harms your own work.