There might be some people that have this "Us Against Them" attitude but I have a feeling the majority view premium membership as a way to help SketchUcation grow more than anything.
We all know that time is money and maybe talented developers can't afford to make plugins because they need to provide for their families. Having the community embrace paying a little bit to support developers will have a positive impact. Maybe I am dead wrong and this is the worst idea ever, but we need to give it a shot and take a risk. Lot of mistakes are going to be made, but like it was said before, the willingness to learn is key for this to work.
I will like to make an experiment with a plugin I am currently working on. Not 100% sure how to approach this but I was thinking to test some suggestion JQL posted. Maybe add early access to beta for premium members to see if that motivates people to support SketchUcation by becoming a member(fingers crossed). However the forum topic will be public for everyone to see the progress and also collaborate with ideas. I am little nervous about this but we will see how it goes.
More information soon...