Anyone else noticing a trend of relatively-old and previously modestly-used accounts (like once a year) coming back for a couple of days and sending 80+ messages a day or is it just me?
I’m not talking specific users here, I’d flag those I reckon. But talking generally. I’ll do some research online.
People come and go. This isn’t an issue in itself. You can flag posts you feel are breaking site rules
Someone woke up Valdimor and the cross platform told-you-so’s? Similar content when it happens.
You are less skeptical than me 
which you are right to be. My instinct would be some kind of bot or AI influence, but no matter. I have been paranoid about these things before
That’s probably unlikely 
It’s a safe bet that if something like this has occurred to you, it’s occurred to us too. But we try to give people some space to prove themselves one way or another.