It's a bit tricky to know where to submit blog feedback, so I hope this will suffice.
I've found that your design polls are not open long enough. Two days isn't very much time to gather meaningful feedback from the variety of users that read your blog. It makes me think the polls are just quick ways to defend immediate decisions, rather than larger, longer-term design ideas (which I would think would allow for more time to gather and to reflect). It's just frustrating because, as a reader who is often busy, it makes me feel like I can't participate in some of the really neat changes WordPress is considering.