We'come to the guild, [@RPLinx]. We think [url=http://www.roleplayerguild.com/topics/4958-a-new-users-guide-to-the-guild]this[/url] will answer most of your questions. If you have further, ask anyone. 

There are no limits (other than those related to international law) as to genres here on the guild. Though RPs of a more... erotic... nature aren't permitted in public, there's a very nice PM system where such is fully acceptable.

As for expected responses, that depends on each separate GM. He or she chooses his/her own requirements.