I'm relatively new to Tapas, and started out as a reader, so I'm not sure what it used to be like.
I will say the premium content, that was advertised, is what drew me to the site. Then I realized there was a whole slew of free content from smaller creators- and that I could be a creator too! I would never have known!
So, I guess I'm saying that the premium content might not be a terrible thing if it gets people on the site, where then they can discover the community of creators.
I DO think Tapas needs to feature the smaller creators better, and I hope it is something they incorporate soon.