You know, I'm almost 100% certain they did... I use them automatically every time I boldface anything so I'm pretty sure I'd have noticed a long time ago if it wasn't working (I've definitely had plenty of posts in bold here). I only noticed it about 7 -10 days ago.
Ok, go figure. It just started working again. Bold
All these shortcuts (ctrl-B, ctrl-Q, ctrl-W, ctrl-I) seem to be ok again -- which they weren't yesterday!
Except for underline. Which still
doesn't seem to work [I did that one manually with a mouse]. Instead Ctrl-U seems to highlight the UCP link at the top of the webpage.... Weird.