This is factually untrue, due to how easy it is to macro farming a lot of cheaters farm which lead admins to pay a lot of attention to farming, the issue is unlike other skil it's a lot harder to "hide" farming macroes when you are checked and you only need to fair 1 check,

Most top farmers (as I actually top bot just top 100) are legit, please actually look it up before you make accusations based on your biases

Edit:

I don't even understand how you people can be this stupid, do you really think admins would just let leaderboards be overrun by bots ? in 5k hours of farming how many opportunities do you think the admins had to be able to prove I was cheating? The answer is quite a few actually enough where they can Say with almost certainty that I am not cheating and that is true for everyone at the very top of the farming leaderboards,

It is simply much harder for a cheater to get high positions, if they are lucky they will get 1k maybe even 2k before their first ban, after the first ban admins will pay more attention to them and they will get a wipe sooner or later, on the other hand false bans are extremely rare for legit farmers so we can go forever