I haven't logged in since people noticed that certain appearances you've learned have been removed.
As a transmog hunter, it just... instant killed any interest I had in playing. I grinded, I farmed, I quested, I spent years learning all those appearances, only to have them "unlearned".
Have they been restored yet? Because after all that time & effort, I'm pretty much ready to take a hiatus rather than start farming all over again.
Seeing years of hard work wiped out will do that.