Just a little speculation, but should we really give series that have finished, like Inuyasha, their own board?
Don't get me wrong, I love Inuyasha, my first website was a Inuyasha fan site, but the reason the boards were specifically for CCS and TRC was because the series (TRC at least) was still updating and the reason we're creating new boards is because TRC is coming to its finale. Also Inuyasha doesn't fall into a collective like CLAMP or Gundam, it's pretty stand-alone and I don't see .
That being said, it seems like a general anime thread would be more suitable for people to discuss a finished series if they want, but an entire board feels a bit overkill and it would probably sit idle since there wouldn't really be any speculation or new developments to discuss. I know I'm basing my examples around Inuyasha, but I think this should be considered for other animes/mangas that are suggested for their own boards.
Otherwise I agree that ongoing series like One Piece, Bleach, and Naruto, or a collection of mangas and animes like those in CLAMP could use their own board.