I definitely think this is a great plan. Feedback loop implies that it keeps feeding back on itself, and while we give you votes and comments, and you curate some of our links, the loop ends there.

By adding the summary of the manual curated posts, you also give us feedback on what you liked and selected, as well as letting the individual's that were manually curated know they're doing good, while those that were randomly selected know they got lucky.

In a side note, I don't recall even seeing day 4's post, so it could be an issue where people just didn't see the post? I follow you, and I check my feed back in the morning, but could have just missed it.