Come to think of it I didn't mention the praise for Boucher in my post because I don't think I've ever seen anyone bashing Boucher in fandom, at least not in relation to B7. (Apparently his characterisation of Leela in his Doctor Who prose novels is a lot darker than many Who fans would like to think of her, but that's the only negative thing I've seen about him.) But on the other hand, it may have partly been in response to people who praise Nation. It's an odd and revealing phenomenon that people who are casual fans of Doctor Who and Blake's 7 think Nation is a genius, while people who are deep enough fans to have seen every surviving story and read/watched off-screen interviews are rather less respectful of him (having noticed how similar his stories can be, and heard about how little he actually contributed to certain work that he was credited scriptwriter on.)