@pitaj Ho, man! Sometimes (oft times?) I am just too brain dead on the discoverability of such knobs. Thanks for the cluebat!
However, while the above provides information about posts, I suspect it is really "users" we are interested in w.r.t. anti down vote warfare tactics. For e.g., I would like to sort down vote frequency by user. Users near the top of that list may be engaged, opinionated, totally legit in expressing their disagreement and not necessarily "weaponizing" down votes but something along these lines would help admins illuminate those bad apples who are.
Anywho, some half baked thoughts that probably require more time in the oven. Cuz one thing is for sure, no matter what we do the asshats and cheats will find some way to gamify it.