I didn't know exchanges did such things, but still no different than usd or other fiat really
Try sending your coins to LocalBitcoins or any gambling site. Coinbase will ban your account for TOS violations. They watch your money, after it leaves their exchange.
Of course, they could easily track it through 2nd wallet, but how many degrees of separation then? If you send to a legit biz who then sends to banned biz, are you culpable?
Hadn't heard about this. Investigated & apparently if you send directly from your coinbase acct to one of these groups, you'll get flagged, not if you send to a personal wallet 1st.