As Tim said, there is no official enforcement of roleplaying. Trying to do so would be a stinking morass of crap, and an open invitation to flame wars.
If you do try to bring up some issues on the forums, please remember to be polite about it, and not try to turn it into an open invitation to slag some particular player/family.
If it is actually an abuse of the Social Contract, then refer the case to the Magistrates or the Titans.