Aside from breaking everything one does that is based on naming?
Such as LOOKING for something in NEI? Or finding it in a chest?
Last time this happened i set my computer’s date to not april 1st just to avoid it… Since seemingly (IIRC) there’s no config for it.
It ruins easter really, a holiday i am looking forward to because i don’t work on easter. I don’t want to mess around with fixing something someone else finds funny.
In fact, i think Aprils fools is a stupid idea altogether. It’s not funny and it leads to anger and extra work.