unbolded,gloss bolded!gloss
Okay... that leaves:
spoiler clicks, apparently only an Android issue (javascript!)
erroneous "last page" handling when filling up a page on new posting (who would've guessed that 20 posts % 20 posts per page = page 1 and not page 0?)
what post you jump to when entering a thread (especially when the last page is full; same problem as above)
and what post you jump to after editing, "return to" page links)
and finally nesting glosses (will need to implement a new regex replacer function that applies a regex repeatedly until it fails)