That's what I thought, but there are apparently an awful lot of buggy clients out there. It's difficult to know which ones are the culprits since that information is not available to Acquisition users, but I know for a fact that Shareaza doesn't support this (i.e., it boots Acq users after the first 97.7k). There are surely others, given the howls of outrage from users when this "feature" was introduced.

Anyway, Dave Wantanabe, the developer of Acquisition has taken steps to try to fix this on his end, and it seems to be working better now -- so far.