1. MFC uses free shows by models as their principal method of advertising to attract customers. It is called a loss-leader. This reduces MFC's spending on advertising allowing them to pay models 5 cents / token or approximately 60% of what the customer pays.
2. MFC is lax on some of the rules, but they do enforce others. No men on camera and no boy-girl hardcore are two of them. I know of two models who have been banned for breaking those rules. I doubt the models received their last paychecks. Thus, I seldom see men on camera there. The word is that Agent99, with a camscore around 10,000, was banned possibly for doing shows outside in public places or other reasons.
3. On November 1, 2011, MFC suddenly terminated most of the studios and models in the Philippines citing legal reasons. Maybe that was the result of MFC enforcing some rules. Be careful what you ask for, lest you may receive it.
This seems as though the competition is using opinion to argue against MFC's success because they are afraid they can not compete.