Hahaha! I think the only non-obvious bot accounts Putt has banned have been a few people who very blatantly used tried to mass-upvote or mass-downvote others. I doubt Putt would ban any established users for iffy activity until he comes out with a statement and what exactly actions to avoid where vote manipulation is concerned.
In the meantime, though, I too will be refraining from doing any vote testing on real Voat.