Certain GM's used they powers to raid my bunker. you can look at it how you want. They did use their powers as GM's to raid my bunker. I don't bother even playing much anymore. no point.
Sorry to hear, though if it was a 'used' base beforehand, it is a bit difficult to 'sanitize' it as you so put it. This is the inherent problem with buying any used base in this game, and given that, if you can afford a bunker, I would've personally had a legion of slaves/mercs there on the 'kill all' sort of orders for some time. Then again, I am paranoid and not everyone will go to such great lengths....Instead I just live alone in a base. Much cheaper.
To sanitize:Could delete all names listed in Terminal before sale/adding the new owners, Teleport those names to the Bunker, kill them so they lose base map.It would be a lot of typing.
Any questions about GMs activity should be asked using overseer2238@gmail.com. The person operating this email (call him/her The Overseer) has access to all logs containing GM activity (logs are also more detailed now). He/she has been chosen from outside the GM team and his/her identity will remain unknown to anyone but the developers team. This email is now the only proper place for objections and inquiries concerning GMs.