I know that the reputation of Six Apart was thoroughly trashed in the blogosphere after they announced their new licensing scheme for MovableType, but I think that a lot of that criticism was unwarranted.
I would love it if further down the track, they could incorporate some LJ-like features into TypePad, such as being able to set up communities and specify granulated viewing permissions for particular posts.
I’m more concerned about how this may affect LiveJournal. If this acquisition means that LJ will still be doing its own thing a few years from now, whereas otherwise this may have been in doubt, this acquisition is a good thing. It’s not as if this is like the sad day when Microsoft bought Hotmail.