Jimmy-
Erik banned Antony DiPierro.
I still think that was justified, in accordance with established precedent, and not "vigilantism". I will gladly explain why if you want me to.
As for expanding ban privileges, please consider making the "three revert rule" (see Wikipedia:Revert) official policy and allowing 24 hour bans (after a warning) in case it is violated. Edit wars are a huge pain for everyone involved, and we really need to put an effective stop to them once and for all.
As a less severe measure we will probably also want to implement per- article bans.
Regards,
Erik