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?”
My work email address. Everytime someone composes an email to me they’d have to decide “is this question worth the mild electrical shock or could I just Google this?” and I’d honestly take a pay cut to make this happen.