So i'm not too sure how I feel about frats yet. I am a current member of The Little Monsters (#1 frat at the moment). So far everyone frat member I have played with has been loyal and we have gone far together.
My concerns with frats is how members are determined. It seems that with the current system, as the group grows the more stars you need and the greater chance the group will lose members. This system relies on all group members keeping up to date on starring all fellow members, but in reality this isn't very likely when a frat has 200 +++ members.
Maybe it would be a great ideal to just stop accepting new members for a while and give everyone some time to star it up.