Maybe, before losing track of the account, report it. (See instructions at
https://www.facebook.com/help/263149623790594) If Ann is right about what's going on, Facebook really should have a way to prevent someone from doing this.
You might also make a note of the account's other "friends," who might benefit from being told what's going on. (If I'm on the friends list, then we know that it's the poet's actual account that the requests came from.)