Alright, the basic gist is that Sbennytopia are mostly a gaming community, where people here make mods of games, E-book and apps. But they also have a lot of other stuff's, people can have a fun chalk and interact with each other like friends and discuss about practically anything... it's kinda like Facebook...or maybe Twitter? But with games, a lot of games. I think it's basically a fun website.
Also, people only use English because we come from all over the world.
Ps. Next time you can try to ask these kind of question on 'question' thread or just plain old general chat.