Hello there! Glad you could join us at last!
As for the godmodders and other such unsavory folks, it's true that there are quite a few of them, but there are also quite a few mature, pleasant folks who are always willing to show you around and make friends.
As for which specific groups to watch out for...there are no specific groups to watch out for. FeralHeart has wolf rps, lion rps, cat rps, dog rps, horse rps, demon rps, dragon rps, and even human rps, and all of those groups have their fun and not-fun people. You just have to take a look around and test the waters. You'll encounter some unpleasant people, but the
pleasant people are more than worth the searching for.