There are a lot of things I would never like to hear. Among them:
banning of Star Trek
Jar Jar has a talk show
Musical episode of Angel
What's Star Trek?
Star Trek? Isn't that the one with Luke Skywalker?
Tribbles from the mirror universe
The last one was just announced by the guy making the new Star Trek MMORPG. You can read the whole artilce if you want, but really... tribbles from the mirror universe, I ask you.