Bots it was pretty poor against. But it was amazing for random trolls who manually created accounts. Did cause disruption for newer uses though you just manually approve a few comments until they get over the karma threshold. I just wish there was a one click "ignore this filter for this account"
For all the problems with karma it did allow for effective filtering. With most accounts on Lemmy being harder to create with captcha and approval it might not be needed
As far as I'm concerned it is a phrase you use as a joke when backstabbing someone in a game. I don't imagine people use it seriously but I've seen dumber
I would say try E but looking at your name that's probably on the agenda