An earlier post had an opinion on which of the Discworld books was the darkest. That post suggested "Truth" which takes on journalism, and yes, the satire is scathing. And Death has his hands full.

Just finished reading "Feet of Clay," however, and WHOA, that one is dark. This one takes on Doctor Frankenstein and his monster, and how dark is that! No, I mean you won't literally see the monster, or the doctor, in this book. However there is a folklore equivalent, which I will not spoil here. Turns out that an entire category of unskilled labor in Ankh-Morpork has been answered by the creation of humanoid things with scripts in their head cavities, literally, and they are the lowest of slaves. Yeah, there is a LOT of social commentary brought to bear in this one. I'm impressed.

And here is another thread sub-topic to introduce.
Several posts have gone with, what character/behavior do you love the most.
But after all, this is English satire, which is incomplete without: The Character/Behaviour You Love To Hate.

Therefore my question:
Whom from the Discworld do you most Love To Hate? Don't be shy!

The first thing that springs to my mind has a characteristic intro:
Bingely-Bingely-Beep!    OH NO NOT AGAIN, every time.