Second, when I tried to quote someone to reply to them (and I have the plain-text editor enabled by default), I got weird rendering issues:
Notice that the formatting buttons are kind of gone, but kind of not (they were invisible until I moused-over them). Also, when I started to type, the text box extended past the "Post" and "More reply options" buttons and covered them (but apparently they were still clickable, albeit totally invisible, below the extended text box, and by guessing at where the "Post" button was I was able to click it).
Third, I tried editing this post, but when I click "Save Changes" (using the inline editor, not the full editor (clicking "Use Full Editor" does nothing)) (also using plain-text mode), the changes will not save. The green loading bars will pop up at the top of the screen when I click "Save Changes" like they normally would when saving a modified post, but when they go away I still have my inline text editor, and reloading the page shows an unmodified post. Note that that post has a history of edits, none of which actually contain any of my edits.
Edit: I'm on Chrome 23.0.1271.101 + OS X 10.8.2.
Edit edit: apparently I can edit this post using the inline editor (and the full editor), for whatever reason...
Edited by Cornstalks, 21 December 2012 - 10:52 PM.