I think they can, actually. I had a disagreement with someone on SO; this person subsequently went on a downvoting spree on my previous answers. I wasn't terribly worried about the points but e-mailed the mods to report the behaviour. I was told they would reverse the downvotes if the user persisted, but that they preferred not to get involved (for obvious reasons).
The term "mod" is a red herring here. The engine will auto-reverse obviously targeted voting, and the community team reverses cases too subtle for the engine to handle, but that are clearly personally targeted.
mkingston|12 years ago
mdmarra|12 years ago
Moderators cannot even see who voted a question up or down, never mind reversing votes.
References:
http://meta.stackexchange.com/questions/144747/partial-fix-o...
http://meta.stackexchange.com/questions/229173/reversing-an-...
jaydles|12 years ago