Wow, 66 comments in 1 day. It looks the idea of having a mid-month open thread was a good one.
Seems like an indication that a third tier of posts, possibly karma-free, might be a good idea. Something like Stupid Questions, or Beginner's Corner, or Sandbox, or...
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
(I plan to make these threads from now on. Downvote if you disapprove. If I miss one, feel free to do it yourself.)