Just in case anyone was curious, here is the message YouTube sends you. Note how generic it is. My channel was in no way spam, scam, or commercially deceptive. It was me playing KSP, plain and simple. I didn't try to monetize my channel and I never placed links to my channel anywhere. I just used the tags to tag the videos for keywords related to ksp. I would love to know what "repeat violations" means specifically to my account.