Other than experiencing a minor inconvenience, nothing upsets a "Karen" more than than the term "Karen."
A "Karen" is a privileged, entitled, middle-aged woman who doesn't care for service workers and consequences. A guy on Facebook called out a Karen Supreme, who was so snobby, she was sent to jail for opening her nail salon during the coronavirus lockdown. The post went viral on the Insane People Facebook subreddit, because it truly is insane.
Selfishly breaking the law is a total Karen move... as is complaining about the call out.
The Karen defended her sister-in-Karenhood, and was absolutely enraged at her ex-friend for calling out somebody who broke the law and put her community at risk.
To quote the post that started it all: Bye Karen.