There's nothing wrong with selling out. I assume Posterous was founded to make a profit at some point and selling out allowed them to do that. I'm actually 100% okay with that. I was merely calling out that "never selling out" is a strange proposal coming from someone with a track record for selling out...on the day that this former sold out service announces it is shutting down forever.

It might just be bad timing to announce the next project more than anything.