I've been thinking a bit about Appendix N and how I got into reading for fun because of D&D.
What's interesting is thst while I didn't stick around AD&D for long, it absolutely *ruined* fantasy for me. Lord of the Rings was never as cool as the content of a D&D session and I remember when the New Weird became a thing and fantasy authors started blending SF and Fantasy I just thought of all those 1970s D&D modules with UFOs in them.
A lot of grimdark was dudes writing about their old campaigns.