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For user experience, I don't like it either. But I'm more curious about the duplicate content issue. Could they be seen as simply full text RSS feeds on multiple sites? Or since the root domain is still apart of the site, it is actually seen as "on-site duplicate content" which some suggest penalizes the main site. i'm going to recommend removing the posts all together, and then to offer an RSS of just links on another portion of the page. Maybe on the left or right column? This could be beneficial as it builds our internal linking.

I'm not sure on that one, but I'd be surprised if you couldn't as you can do so in Adwords and that's where Youtube gets its ads.