https://www.polygon.com/2018/7/19/17591290/pokemon-go-ban-policy-three-strikes

Cheating has always been an issue for Pokémon Go, but Niantic has largely kept the decision-making behind warning and banning players close to the vest. The developer has now come out with a detailed explanation of how it disciplines those found playing the game using unfair methods.

The three-strike discipline policy laid out in Niantic’s latest blog post is pretty clear about who qualifies as an offending Pokémon Go player. If you’re spoofing your location to access regional exclusives or having bots help you speed up the catching process, you’re cheating, according to the Terms of Service and player guidelines.