Easy profits now will limit big profits later.
Charles has some interesting ideas on how to avoid that fate.
I think he may be able to deliver, time will tell. 90 days carte blanche, that's a bit of a risk to take but I've gotten to know Charles and Jan very well over the last couple of months and I fully trust they will not do anything that would embarrass me.
If you actually do have paying non-adult-content customers though, the battle may not be lost. I'm saying this without much knowledge on your revenue model, but instead of suddenly alienating the adult-content customers, it might be possible to let them continue to use your site while you slowly focus on giving more value to your non-adult content customers. In this way, you may be able to steer the direction of the company and substitute the revenue base in a less destructive manner.
The traffic that each camera gets should be pretty easy to track. The site also has a top 100 cam list so it apparently does track hits to cameras. Seems to me that they should have known that 5% of their cams coincided with 60% of their traffic before hand (and whether those were adult only cameras or not).