Punk officially died in the early 80s, the moment that it could be classified. Not to mention that the punk way of life was heavily based on living to the extreme, burning both ends, also ensuring that you were likely to be short lived. Sid Vicious is the best example of this I can offer. "Real punk" (gigs lasting 10 minutes before being busted, riots, binging) was horribly self-destructive but was also explosive enough to leave little pieces of itself embedded in other parts of our culture. Or so my research has lead me to believe