My practical answer would be, of course, right wing shit, period. It wouldn’t stop them but might slow their spread.
My fun/funny/unserious answer would be commission an algorithm to monitor Reddit so I don’t have to that keeps track of exceedingly popular passive-aggressive and smug ways to start and end sentences and takes the top percentiles of them and makes them the shockers of the week. It would make Lemmyverse liberals a lot less redundant as a side effect, too. 
“Umm, I’m sorry, honestly, but let’s be honest here. It’s almost as if…”
“Wow, vitriol much?”
I would make it some random very uncommon word that everyone knew, then people who like being shocked could say it whenever they want. This would be my great gift to humanity.
Sort of like a Deus Ex killswitch, but for horny purposes.