I mean, you definitely can't discount the influence of rappers (something something Kanye West's dreams of working alongside Helmut, Rick, and Margiela) but we also like, don't suddenly have Rihanna in Raf Simons fw02 or Kendrick Lamar in Craig Green from nothing. All of these sources (4chan, reddit, archival igs/twitters, guys in general who say they're into archival fashion) are all interested in these same designers' work from 1995-2005 that while all pretty excellent are not in a vacuum. Nobody really ever talks about much stuff before or after this period; you don't get guys trying to buy vintage Armani or Balmain under Christophe Decarnin even if those were the popular "menswear" of the day (cycles of cool perhaps?). If you talk to your average male teenager/young person, I doubt they'd suddenly start talking about avant garde menswear as they would Supreme or whatever. I'm curious in the source that lead to influencing these rappers (and now their fans, and I guess fashion in general) that wasn't present even five years ago.
I think a lot about (
http://lacollectionneuse.tumblr.com/pos ... -simons-99 ) this post from La Collectioneuse, a tumblr run by a set of related people (most notably names like humalien, ohyescoolgreat, and cotonblanc (r.i.p.)) who all started posting about this sort of fashion early in this decade (although cotonblanc is gone, you can see him posting helmut lang magazine scans in the thread on stylezeitgeist, for example). La Collectioneuse collects the listings and corresponding images of garments from the designers these archive guys are interested in, with images and links dating back to 2010. The linked post is for a listing for a Nebraska sweatshirt from Raf Simons' fw02 collection Virginia Creeper, sold in 2011, which various colorways sell for on Grailed for usually $3,000 nowadays, when Rihanna or SZA aren't wearing them. The thing is that clicking the link to that ebay listing show the sweatshirt selling for just £125, or $180 today (if only I was hip enough to be trawling ebay for Raf when I was 14).
I'm interested in the switch that happened to make this kind of change in demand and thus price. I guess 2011 was the height of the #menswear craze, so I guess nobody was really interested in distressed sweatshirts as they were like, oxford shirts or whatever. I think Grailed had more handle in it than its given credit for; I remember when their first curated sale came out for fw16 (lol) it gave me an idea of what were "grails" that I should aim for and thus what designers to pay attention to in general. I didn't know about Helmut Lang pillow neck bondage jackets or Raf Simons New Order Parkas or especially Carol Christian Poell Drip Sneakers before that (though I did only "get into fashion" as a senior in high school in 2015).
I bring this up to say that the hype around these archival pieces is a really new phenomenon. While I've seen some fans nowadays try to instantly determine what pieces in new collections will be "future grails," I don't think you can make such fast judgements on what will or won't become popular (and why I hope the Raf hype won't be sustained and cause prices to crash, lol). While Grailed kind of codified it (the most glaring example being the craze for IS Tsumori Chisato Bomber Jackets-- Tsumori Chisato's design for the Issey Sport line was specifically designed for teenage girls in the 80's, and now people like Ian Connor wear them), I think it was really fashion nerds on tumblr and forums (like us!) that eventually dictated all of this interest in the "archival" (rebranded from secondhand) market, along with timing of trend cycles, a sluggish design industry this decade, and new austerity post-recession. Granted, I have no knowledge of how these brands were received or bought pre-2010, which would be interesting to know, though I have heard that Helmut Lang's final collections were not well received from a retail standpoint, causing bondage bombers to be on clearance racks for years, which is why there are so many on the secondhand market in mysteriously new condition.
Does that make sense? I know this was long and it's just my observations but I definitely think young men desiring the (mostly quite gay, definitely difficult-though-well-designed) fashions of two decades ago goes deeper than rappers wearing it. I mean, the rappers had to get it from somewhere.