[catach]

I would submit that those who enjoy the genre most are probably those who largely attempt to uncover the "winning moves checklist" for themselves.

[danudey]

I enjoy games like this (and also other genres, like city sims or turn-based strategy games) because I enjoy seeing what happens. It's a process of discovery and interaction.

In the case of NetHack, though, it's mostly about how much hilarious stupid stuff happens, like the time I started a dungeon, took my first step, and my kitten triggered a boulder trap and killed my instantly. Thanks, kitten.