That's points, there's no karma attached to you, therefore nothing to farm. You don't need to worry about posting something potentially bad because you don't think "FUCK MY KARMA'S GOING TO TAKE A HIT, I SHOULDN'T POST THAT" you also don't post something like "AITA for getting mad that my gf killed my dog after winning a video game" because that would be a karma farm. There's a counter on Reddit, not on Lemmy, for how many points you got over all of you comments and posts.
Peace
How have I never thought of comment hijacking?!