I agree with the assessment of Good_Burning_Plastic and Lumifer that user vision is Eugine redivivus yet again.

Have our esteemed moderators taken a look at what accounts are upvoting all Eugine's comments (across his multiple identities)? If, as has often been suggested, Eugine is getting most of his upvotes from sockpuppets then disabling those might be somewhat effective in making it harder for each of Eugine's accounts to start mass-downvoting before getting banhammered.