I put a lot of time into creating a decent guild on Gaiaonline.com, and then people joined and never posted, or they quit, or they simply didn't join at all.

I did the same with an MSN group dedicated to RPGs, made it public, told online friends about it, 3 people joined and never posted. I put a lot of work into that too.

Please don't say "because it's crap", because I have done the same things as other people have with different subjects. I just can't be bothered to make communities that have a range of interests because nobody damn well bothers. Why? Because I have better things to do with my time.