Set up account 

Amongst stans, a "Set up account" is a fake account on the internet that pretends to like an artist they actually hate and says awful things, so the awful things are automatically associated with the artist they dislike

She's being too irrational, it's probably a set up account

Set up account by anonymous July 4, 2025

Set-up Account 

Fandom Twitter slang, A setup account is a profile created by another fandom made to make another fandom look bad. The fake profile will generally tweet out offensive stuff.

“Did you see that (fandom name) account that made 9/11 jokes?”

“Yeah, I think that was a set-up account.”

Set-up Account by Han”IClappedLeia’sCheeks” Solo February 4, 2021