When I first heard about HDOOM I thought it was just a mod where the monsters and levels were on high resolution.
Boy If I was wrong.

Or maybe those minds just want to have fun.
They're doing it because they like it.
Just because there is a lot of effort it doesn't mean they spent countless hours non- stop into them.
Take Schyte and Plutonia,it took them more than 5 years to get them right.
If you really want something that makes you question"what the hell was this guy thinking while he/she was making this?" and staying in Doom theme,take the Terry.WADS
A complete shitpost made with editors that allows you to create great levels,a complete waste.