I host a bunch of Movable Type sites but in a "hands off" manner. The expectation is that users will fend for themselves, RTFM, use the paulm.com mt-users list and so on. On the other hand, I'm a sucker for helping people out. So to that end I have installed my own MT weblog so I can at least say I'm not completely clueless about it.
Of course, I had to set all the MT permissions for my account to 11 :-)