Ask HN: Suspended from Twitter while not using it?

I haven't used Twitter in months, but received an email from Twitter stating my account "has been suspended for violating the Twitter Rules. Specifically, for: Violating our rules against platform manipulation and spam."

I logged in and see a similar message, but don't see any evidence of my account being hacked. My last comment was years ago.

What's going on? Did I get banned for the wrong like? Is it something algorithmic? Did this happen to other anyone else here?