Users will still be able to upload their own avatars though. There isn't a setting to disable that, but for the time being you can set "Maximum User Image File Size" to 0. Created an issue for that specifically:
I am not using this for production, and have no clue why you think I do 😄
I am just developing some plugins and themes & would like to focus on the important errors my plugin / theme throws. Right now I can't even see my errors sometimes because they pass by so fast due to the large amount of warns.