Hi, CGPitbull. I've just created a new account to keep myself anonymous (just a matter of "business security"). Yes, I've sold here this month, in fact, this is the best month since I've started selling models here (even almost as much as in TS). Let me show you some "generic" statistic of my sales (without exposing real values, of course):
First of all, I always keep track of my sales, in order to see if the TS exclusivity rate would be better instead of selling in multiple websites, and the result? I would've lost 6,14% of my total income if I were exclusive.
My sales since I've started selling 3D Models (I'm not an old school guy, I'm relatively new on the business): http://puu.sh/cjfEm/593ad405b5.png
What I want to say is: CGTrader is a great website, with great potential, but maybe it depends on the type of 3D Models you sell. For me, the non-exclusivity is paying off, and I don't think I'll ever be exclusive. I understand that it's the other way around if you aren't selling here, but as I've noticed, each website has a "3D model type" of which sells the most, you just have to "understand" the website.
Hope it helps. My point of view about the "issue".
Best regards.