Usually that means a retread "nuke on sight" troll.
So, there are people out there who being multiple retreads will be nuked on sight no matter the content of their posts.
Saw that happen once or twice personally.
Usually some opportunist shows up and says "But tehy didn't DO anything!"
To which the mod, if feeling like giving an explanation, says "They are a serial retread on the nuke on sight list."
We've been inundated lately. Nothing like a disaster to bring out the weird in people.