The "personal dotfile" that's lives in the same repo as the extension and is recommended as an example in its documentation, and only documents these commends as "Add helper commands that Mozillians think make Firefox irredeemably insecure". If you want to signal to a reviewer you're not taking them seriously, that's the kind of thing to do when they ask you to remove code.
`fixamo` was first removed after an informal request via informal channels from someone on the Firefox security team. The comment wasn't intended as a jab at a reviewer who didn't exist at that time; I was just tickling myself as is my wont.
I'm sorry if it offended anyone. I'm generally really appreciative of the work reviewers do.
