I've seen this crop up a few times and no-one seems to answer it, instead just stating that they like it (less than helpful), so decided to have a dig around the modpacks that do it as it's been annoying me no end since it started appearing in packs.
Looks like it's ttCore that adds it and you want to change the:
# The way the game should have been made.
B:superDuperFunMode=true
setting in the config file to be false to disable it. No idea if it affects anything else though.