Well, look at your own links.
As for my own feedback, I keep a public list in http://www.gwern.net/Links#fn2 Going backwards through the last 3:
I guess it wasn't clear, but I was suggesting that if those papers had been posted here while they were still in draft form (as opposed to "finished and published"), they would have received more discussions since people would have more incentives to participate and potentially influence the final output.
As for your posts, I think the reason for lack of useful feedback is that they are mostly summaries of many academic papers and it's hard to give useful feedback without spending a lot of time to read those papers which nobody has an sufficient incentive to.
Has anyone yet mentioned or reported that for the last couple days, the "karma for last 30 days" is showing zero for everyone? And that we no longer can see the top contributors for the last 30 days either?
Do we have an explanation or estimation for a bugfix on this?