I had mine banned after years of revenue; I still do not know why; I just got an email saying ‘suspicious activity’. I emailed with a polite text asking why this was and I received, of course a nice ‘this is final’ email. This ended that startup attempt. People can say ‘do not depend on Google’ but no one pays anywhere close to the same amounts; the income allowed us to grow and build towards a paid SaaS offering while others were paying just enough to maybe buy a coffee every few days. The difference was that big. So we closed that company and moved on.

Still no idea why though. At the time people online kept going for all kinds of conspiracy theories. Like there were over 20 people I spoke with who got their account banned for ‘suspicious activity’ when they reached 15k$/mo. Mine was exactly cut off at that point as well. I don’t know; it did teach however me I will never do anything ad based; it was a long time ago and ads weren’t considered evil, although after this I definitely considered them as such.