I forget which site, but one site did an update that automatically 'locked' all photos behind a paywall by default.  The gals themselves have to turn off the settings.  Some gals don't realize this has happened; just simply ask the gal if she knows her stuff is locked.

I have protected pics and videos on my site - slowly trying to go 'faceless' in the online hobby world - but not all content is protected.

I was wondering the same thing. And wondering if the ladies were getting something from PureVIP out of protecting their photos. I looked at it like I was paying for the chance to see if there might be any compatibility, whether there is or not. While not a fan of the idea, I decided to pay for one month to see if there's any value to it. For me there is not. Most ladies advertise and/or share their photos on multiple sites. And the few that are PureVIP only with their photos locked, well I'll just have to pass. I cancelled the membership and don't plan on going back. It just seems this is PureVIPs way of profiting off the ladies. You're not missing anything.

I have a free escort design website and the randomly lock my galleries for my "protection". Sometimes they tell me sometimes they don't. If anyone buys a membership when they lock them Escort Design gets all the money.  
It's really annoying, I put a note about it on my site warning people and asking to let me know if they are locked.  

One of these days I will have time to make my own private site but until then I have to deal w it.