How's the TV reception under that rock?
Vedder is one of the most hated-on singers in rock history. Sure, it's mainly revisionism (and yes, it partly has to do w/ his influence) but it basically started once PJ made it big. I mean, there's even a running gag on "Parks & Rec" where Chris Pratt's character does what is clearly a OTT Vedder impression every time he sings w/ his band Mouserat.
For the record, I like PJ (well really just "Vitalogy" and "No Code" and to a lesser extent, "Vs.") but often find Vedder's singing to be pretty hard to take.