Please upgrade to 2.1.x here.
The 2.0 branch is no longer being updated.
Current version is 2.1.11
, released 12 June.
Is there a way to mass-delete users in the back-end of Vanilla? I have a lot of confirm email registrations, most of which as spammers/bots, and the only way I see to delete them is to do so one-by-one.