I think what we have here is just an unfortunate choice of vocabulary on your part, Steph, as "junkie music" does feel like it has an unnecessarily bad connotation.
That said, I think I know exactly what you refer to. Although I prefer to call it "narcotic tinged". When I think of that reference I'm usually thinking specifically of circa '79 through '82 JGB, where Jerry might play sets with as few as 4 or 5 songs that would all stretch to 15+ minutes. Much of this music is undoubtedly informed by his heroin use at that time.
Bottom line: at the end of the day, anyway you slice it the passion shown on these forums is both wonderful and infectious.