I've heard about the problems but have not publiclly said much. But I'm sorry as far as I'm concerned, I stopped recommending Movable Type a long time ago and can't understand why people still use it. Suw's post on strange attractor is simply awesome and well worth reading if you also recieved the email from Sixapart. But generally it doesn't scale effectively, and I'm not saying many blogging servers do. But I wonder why everyone seems to think there are only 2 blogging application servers out there?
What about Blojsom, Community Server, Dasblog, B2, Roller, etc. Theres much more to blogging servers that MT and WordPress. Go Explorer, don't be constrained by whats the norm. http://asymptomatic.net/blogbreakdown.htm