I saw this today morning:
Do we know who and why?
AFAIK, 250+ users have been affected.
Related: Massive user removal in one night?
Unfortunately, information about suspensions/account removals is private information and can not be disclosed by CMs or moderators unless the party in question chooses to reveal it.
I can say that it would be an account removal rather than a suspension though. A suspension would not impact the reputations of users, only an account removal. (If anyone else notices a name missing from the user list, they are welcome to post it though.)
It's a bit interesting that it impacted so many reputations as well, they used to freeze reputation changes after a while (something like 90 days I think it was) to avoid this kind of recalc on a removal, but I guess they decided to reverse course on that, or maybe just extended it.
This meta post covers more (not much more) from SE on the subject.