Yeah I get that.
But subcultures move on, I'd say people trying to recreate the exact conditions of 90s rave in trance / squat acid scenes just haven't moved on, it's a nostalgia thing and a dead end. Which paradoxically is what people have claimed about dubstep, although I haven't heard that said in a while, which is in fact throwing excellent parties that are presenting some new cultural angles.
I've never been to a free party where anyone's tried to recreate the exact conditions of anything - that level of detail is a bit beyond most crews i think, they're generally just trying to get people into the building without getting busted. It's more about appropraiting a non-club space, possibly illegal, and playing funktional music aimed at people on drugs - there's also a black humour and an underdog snarl to free party culture that really reminds me of hardcore, and that I don't see in any other sphere of contemporary dance music.
If you're saying that any time anyone throws a party just for people to come in & do thier thing, without any overarching cultural agenda on the promoters part, then that's automatically a 90s throwback - I think that's a bit of an indictment of modern clubs TBH.
The history of UK hardcore has been warped because so many of the people chronicling it were based in London (and this is a recurrent beef of mine) - rave culture was nothing like as monolithic as people make it out to be, lots of rave clubs were playing banging German techno and dutch EBM/proto-gabba stuff as well as breakbeats. The thing about 'rave culture' is that actually the music is one of the less significant elements to it - which is why rave has always been a purist's nightmare, because it's not 'all about the music'. it's about getting wasted and letting off steam.
Wherever you have cheesy, funktionally produced music made by untutored producers for skinny, bug-eyed kids to play in their vauxhall novas in McDonalds car parks at 4am - there you have the blood of rave.
Where did that waiter go?