Okay, so I think there is a consensus on the theme framework.
So let me ask this – what would allow you to take advantage of your themes? I still see a 50% commission as absurdly high. I’m not looking at it from a retail perspective, but as a sales perspective. A 50% sales commission would be absurd.
For those who are theme developers on this site – would you rather have a de-branded page you can sell themes on and have those themes still be available in a theme store?
There’s really only one important thing: Deliver buyers and sales. If you can do that it doesn’t matter what extra you want to charge on top. If you can’t deliver that it doesn’t matter what your view/decision is on “commission”, you’ll get the lower quality themes that Themeforest won’t accept.