Comment by Diagon

Well, it was actually intentional. While a lot of us were backing up our groups as individuals (whether as owners or just members), and having no trouble there, the Archive Team was taking requests. So there was volume involved, and they have been in touch with Yahoo who refused to be supportive of the archive effort. So their target really was these guys specifically. Not just the ToS, but these guys in the context of an archive effort at a point of "ToS" (Termination of Service).