it seems not a smart move to force communities to develop...when clearly there are certain communities already defined....and people within those communities will post in a place where they think people they know and value the opinions of will see the post and respond.
and for the most part a certain etiquette is respected within all the communities....and when the line is crossed, people usually don't appreciate it. Forcing the issue of topics is only going to degrade the value of this site to the user, making things more difficult.
The primary communities are training, anabolics, diet, etc., and it's the real reason people come to this board. And those issues are taken seriously in those respective forums.
I agree with bullit....splitting hairs doesn't add anything.