I was in that situation a few years ago. I started a hemp related business in 2019 and Ad Sense didn't like my ads and gave me an error message saying I couldn't run my ads because of certain keywords being banned. I forgot about it until a couple of years later when I saw a $300 charge on my credit card bill. Google changed their policy as CBD/hemp had become more mainstream and started running my ads. By this time my business had already failed so I did not want those ads running. I couldn't figure out how to contact a human, so I ended up just paying because I didn't want to risk getting my account closed.

> What if Google reinstates their old G+ and YouTube real name policy for its accounts.

G+ was a failure; people refused to provide real names. Even Facebook's "real name policy" wasn't (and still isn't AFAIK) enforced at all. At one point, I had multiple phantom Google and Facebook accounts. Now I just self-host and eschew social media.