Actually, I kind of like the conversation that this sort of request sparks. I haven't listened to Zep III in 25 years. Time to dig it out.

Seriously, more or less, it's very useful to get reminders of how what we think of as (gasp) "popular" music has roots in less commercial music.

Besides, its really easy for me to ignore requests of this sort when I'm not interested. I just don't click on the thread.