I hate "dim the screen" power management. I set that to "Never" on laptops etc.
Moreover, I hate Desktop Environments' power managers in general. I have none, I removed xfce-power and I just use X11's DPMS and control it with xset (usually just the 10 minute default, but I turn it off and on with xset in scripts when I don't want it)
You name it, I probably hate it (software wise, I mean)
I'm generally negative about software environments etc. I cracked one customer up hysterically one time (I didn't think it was as funny as he did, it just kind of came out). I was ranting about all the annoyances in Windows and he was listening and engaging, what's that thing do etc. and I said something like "I fucking hate anything that does anything!" (I knew what I meant by that, it was rational in my mind lol)