Although i'm a member of a really small one in the UK, i was also on another in the USA, which was a good site but no where near as good as TCS.
The reason i left was because there was too many callous people coming on to the site saying what they wanted to do with cats just to wind the members up
I used to tell the members to ignore them and to not reply as this is what they wanted. I also sent e-mails asking a moderator to stop the idiots in question because it was really upsetting a lot of people but nothing came of it, so i'd had enough and started tapping the keyboard at random and found TCS
Then i got an e-mail from one of the mods a few weeks ago saying they had missed me and hoped i would be back- Yeah when hell freezes over!!!