@backupbear Or:

"No. It's not a common misconception, people use the name for the monster, which means that is in fact the name of the monster as well as the creator because that's how names work.

Also everyone hates you and you'll die alone unless you stop with these petty uninteresting "corrections"."

(Talking to the person in the hypothetical, not any actually real person. Obviously. That would be insanely rude.)