It doesn't have to be bots or astroturf either, you get a bunch of ideologically-leaning mods to ban anyone they disagree with, make them control a bunch of subreddits (potentially), some subs will even ban you for posting in other subs
Reddit as a whole isn't interested in fairness, it's quite clear the direction they took as a site
Reddit as a whole isn't interested in fairness, it's quite clear the direction they took as a site