I also seed track and i don't consider it straight up hacking, because you don't gain an huge Advantage like real Hacks, you just see what you are going to roll next, but you still can get a bad seed, so you can't get all ubers and stuff, but gamafarming is just straight up hacking, you gain an Advantage you wouldn't gain normally. In the end, it still is a single player game, so do what you want, but I am pretty sure gamafarming is bannable and that's why I don't recommend it.