A lot of people thought Husker Du had gotten too poppy, especially by the time they signed to Warner Bros (I'm sorry, but anyone who thinks that Land Speed Record is a better album than Warehouse needs to have their head examined).
Zen Arcade may be the one to get most of the critical acclaim, but I have to say Warehouse is my favorite Husker Du album. I could listen to that on repeat hours upon end.
I listen to all kinds of punk from all the waves, 77, 88, 95, and even the new stuff (what's left of it). And I think to be a true fan, you have to accept the different breeds of punk as a whole instead of the "i'm better than you" games punks often play.
I agree with you. I got into punk with the whole early 90s Green Day explosion, and I'm sure a lot of older punks hated kids like me, but while most other kids moved on I read zines, ordered records through mailorder distro, and got into a ton of smaller bands from all over. Honestly, when people start classifying something as punk I think it's kind of limiting because there's so many variations out there now. The bands from 77 were way different from the bands of the mid 80s, 90s and today. And there are bands that don't really sound punk at all that I still list as punk, like Ted Leo and the Pharmacists or Communique, just because there's a certain punk vibe that they carry from their past work.