While I agree that the ads between posts is disconcerting, I expect to become accustomed to it, and it does solve the problem of the ads obscuring useful text and inappropriately widening the window.
One workaround, if the interspersed ads really annoy you, is to click the Go Advanced button for posting new content. The new presentation does not have the interspersed ads. It does have the posts in newest-first order, which makes me think that the remedy is worse than the malady.