Police Brutality

Yes and no. A bunch of 4channers and white supremacists picked it up and started using it for that, but it wasn't that originally and it isn't always used with that intention.

That used to literally just mean "Okay" and I see no reason to hand it over to those morons

Well, yeah. We can't assume that it's always used for white power, but nowadays, you have to be more watchful of context... There's a lot of shitty morons out there.

Well back in my day. That was a way to knock the shit outta your buddy’s arm, an get away with it.