A Swedish Community (Lunarstorm.se)
that was big in the late 90's - early 2000 and used by basically all kids.
These days it's widely viewed as a community for losers or kids, although the community is still rather big and recently got a completely new look.
Lunarstorm looks more appropiate for all kinds of ages now
but still has a bad reputation among a lot of people who view the site as lame or whatever. The site probably would have even more members if they changed the name of the community.