I'll just leave this article here. Just reminding everyone that if you haven't been banned for spoofing, it's not because Niantic (Google) hasn't noticed you, it's because they want to learn everything about how you spoof. After they have enough data to ban you, they'll most likely be able to ban other players who have a similar playstyle (which also implies spoofing).

Phone bans > IP bans. Hope you're stoked!

http://www.itechpost.com/articles/22416/20160720/pokemon-go-cheaters-soft-ban-niantic-apply-perma.htm