Windemere - yeah, I missed a few of those quick floating NPC dialogues too. But it does seem some of these actually do get recorded in the combat log - which as HH mentioned, causes another problem, as the log becomes filled with them when they're repeated. So it looks like a little more work still needs to be done here in terms of consistency/convenience.

As for the pop-up tips/dialogues, many games have a "record text to journal"-type option for later reference, which would be nice. Unfortunately, it may be a little late to implement something like that (as you'd need a new text journal/diary system). I dunno.