Yes. I own a number of music from the genre.

One doesn't even know the meaning of bad movie until they've seen "Manos: The Hands of Fate". I can thank Mystery Science Theater 3000 for that one. You couldn't even make jokes about the damn thing during the second half, dear god.

80's music is kind of a mixed bag for me. I can't stand the decades pop music or hair bands, however I feel it was the best decade for the likes of punk and alternative. Plus there was great metal from the era as well.

I have A LOT of favorites that I don't feel like listing, but if I were to choose one to acknowledge, it would be Mike Watt from The Minutemen.

Around the 6 minute mark for me. Probably because I listen to alot of punk and whatnot where the songs are maybe about 1 and a half minutes on average. Not to say I don't have my fair share of 10-20 minute long songs in my collection, however.

Not familiar with much math rock/metal outside of the Dillinger Escape Plan. I enjoy them quite a bit but they aren't accesible in the least.

For post rock I suggest you Godspeed You! Black Emperor to start.

Free Jazz, Industrial (Like Throbbing Gristle, not NIN.), Avant-Garde and Experimental, Alot of the more extreme subgenres of Metal and Punk.

I generally greatly enjoy alot of that kind of stuff aside from bands like Throbbing Gristle and whatnot. They're just too experimental for my tastes.

Mr. Bungle and Mike Patton's other projects.

And John Zorn if you want some jazzier stuff.

You can't possibly have a hardcore list without "Bad Brains". You just can't.

Anyways...

Husker Du (Alt. rock/ Hardcore)
Refused (Hardcore)
Minutemen (Alt. rock/ Funk Punk?)
Dead Kennedy's (Hardcore)
Bad Religion (Punk)
At the Drive-In (Post Hardcore)
Suicidal Tendencies (Hardcore/ Crossover)
Choking Victim (Ska/ Hardcore)
NOFX (Melodic Hardcore)
Operation Ivy (Ska Punk)
Descendents (Pop-Punk, Hardcore)
Minor Threat (Hardcore)
Against Me! (Folk Punk)
Gorilla Biscuits (Hardcore)

I don't enjoy Lil' Wayne, but I don't really enjoy 20 minute technical wankfests either.