I don't wanna brag, but it seems to me as if they're changing something back at the ICQ "labs".
They've deleted my old account (which I used a few times since 2001 or so) but none the less, they shouldn't of done that. After setting up a new one, I went to try the On-site feature which seems to cope with beta issues. I even issued an error report, even though it was obvious that they're still playing with it (the error on my end was the perpetual "retrieving contacts" notification -- what contacts, with a brand new ID?).
Not much insight after all, altough I don't think it's gonna go "the MSN way".