Yeah, there's no reason people can't do both: post in a developer thread, if they haven't already, and here. Personally, I'd like to see all the incompatible addon's listed here, so that I didn't have to go looking here and there and wherever to find it out. Besides, my guess is that most developers already know whether their addon's are compatible or not with 1.2, because someone has probably told them by now, and quite possibly they've already tested their own addon's - I know I would, unless I was planning to hold off till the final release.