I would happily buy an app that eliminated the ads. I'm not adjusting well to the ones on the mobile. I keep clicking on them by accident which annoys me.
That's really not a bad idea actually.
I doubt it's realistic though. I suspect Chicken is aware how much traffic (from a pure pages-loaded and ads-seen, thus revenue created) on this site comes from "regulars" who post a lot. Most of them - let's say there are 2,000 at the most - would buy the app, and then there is no more revenue from them forever. If you keep it how it is, those same people will continually bring you revenue; probably a lot more in the long run considering how often some people post here.
This leads us to the conclusion that IF there were an app, it would probably still have ads. Seems redundant with the mobile version being very good. There would be no point.