What drives Google to apply these actions so completely and immediately, versus a more deliberate approach, with notification and delay before action, manual review for paying customers, or a warning to resolve within X hours/days? Once or twice could be errors or bad implementation, but these can't explain away the pattern.

It would seem that Google's counsel has deemed that whenever _____ is detected, the company must immediately and completely sever the business relationship. What is that driving concern? Is it sanctions enforcement? CSAM? Something else?

It could be automated action based on abuse reports. TONS of spam comes from Railway associated networks.

The problem is scale. Google uses automation and doesn't have the people to review the actions of that automation. I never worked at Google but this is the most obvious explanation from watching these things happen for years and years.

Please, someone that worked at Google, please comment.