Nobody can ban anyone off here, that's very specifically how blockchain works XD The closest anything can get is muting you from the front end and even then it's that very specific front end and anyone not using that front end can still see whatever.

I'm pretty sure for bots like cheetah the maintainers do keep an eye on it so if you respond to the bot they will notice eventually. I just kept playfully telling cheetah that it was my post whenever it made a comment and they left me alone eventually.