I would strongly prefer that people didn't make sock puppets at all, ever (even to right a wrong like this).

I don't want LW to become a battleground for bands of rogue internet users, slinging hordes downvotes onto unsuspecting contrarians.

Poetics aside, LW doesn't appear to have a large enough community for sock puppetry to be ignored (as this incident shows). And having the threat of a large karma hit for statements that are even only mildly not the "accepted position" would accelerate evaporative cooling (and make the whole website a less nice place to be).