Starting today, using the Firefox browser (52.6), some long questions or answers were displayed so that the end of the main entry overprinted the status information at the bottom:
This appears in the posting Wrapped Figures Using `insbox` in Lists It also suppresses the ability to click on any of the buttons (share, edit and flag).
This has been confirmed by other tex.stackexchange users.
Has something changed with the way the site is presenting postings?
update: working on the theory that this is related to questions or answers that end with long image insertions or code blocks, i looked into code golf and found another, at Create a solar system :
(incomplete) list of affected posts:
Update 1 March:
Seems to be working fine again!