I'm not at all in favor of ads, because ads quickly become competing content and make the newsfeed unbearable. There is a vast gulf, however, between an arbitrary 30 days and infinity. Also, a mechanism whereby any post that never earned a payout, or even earned a certain number of upvotes is dead in 90 days. No reason to keep everything for ever, but those posts that the community got behind shouldn't end their usefulness as revenue earners. They stay here forever,which would be great, if they could make a little, but as it stands, I can't go and sell something that is already here very well, consequently, I'll be creating disposable content for the most part, until this changes.