What are some odd or unusual code comments you've written? No explanation needed, but here's mine to start the topic 

I was importing a game project from GMS1x and looking at the warnings tab of the feather messages and it suggested I not use the save / load functions as they are depreciated. i could update it, or just let it eat and leave it, so here's my code comment oddity,

  game_save(working_directory+"\\asr.dat"); TODO: Use modern json save system! or not, this is the last edition of Gamemake, LTS Build, so you decide, I would just let well enough alone and run with it.