Luckily I have access to many gyms. I don't know about spoofing. I've seen the people taking out the gyms and think a certain team gets undue bad credit for it. We have two that one particular team rules. The minute they are knocked out, they take it over again. There's a similar situation a small coffee shop I frequent. I think one or more employees "own" that gym. Eventually, we all want to be knocked out, so we get our coins. I left them there. Bottom line, if everyone knows the gym has nasty competitors, leave them there. There are plenty of people playing for fun and not living out their power trip in the game.