I heard that apparently some quests are tied to achievements, so apparently some quests can be done only once, and with some quests you can't see different outcomes anymore due to the way the progress is saved.
And supposedly various dialogues that react to what you've done have been also nixed due to that.
Do we have a list of what AwA broke? I heard about characters being referred to as being in the DB/TG when they're not, for example.
Also is it true that NPCs now call out to you less than before, ie. call you Hero/Saviour etc. depending on what you've done?