re: PLUR, as someone who just caught the tail end of the rave movement in the states (NYC 1994-5) I found that, like the hippies, there were a lot of people on drugs who genuinely thought the world was gonna change and that ecstacy would solve a lot of problems. Turned out to not be the case but made for some nice vibes at the time. Then the thugs found out about raves and started coming and robbing people who were on drugs and shit all went a bit dark.
I have to say I DO find some of that PLUR thing (taken literally, pretty much all of it) minus some of the wide eyed ecstacy addled-ness, in the dubstep movement. Having been working in the grime scene for a bit all the beef, mistrust, arrogance and general non-PLURness that comes from hanging out with a bunch of young thugs can be a bit exhausting. When I started to meet people from the dubstep scene I was blown away by how cool they were, and it made a really positive impression on me. The 'dubstep attitude' is one of the most cool that I've encountered in any scene, I think it may be a response to the grime attitude in a way. Anti-ego, anti-war, pro-sub bass.
As far as people hating on dubstep I actually also participated in that earlier on. I had a very imperfect view of the scene as a bunch of nerdy white guys not doing anything really innovative and stealing the thunder of the predominantly black grime artists. The rephlex 'Grime' comps unfortunately were a big reason for this. Now that I have a lot more information I realize that all of the above is wildly un-true, the scene is not that homogenous, its very sonically exciting and is complementary rather than competitive with grime. More and more people are starting to see that the same way so that I think while there may be a bloglash against dubstep there will be so many people coming through from grime, jungle and other scenes that expansion will be the significant development this year.
As far as the sonic criticisms of the movement, I am a producer who is unhappy to remain in any one sonic area for very long at all and am constantly hopping around (maybe to a fault) and lately dubstep is really tickling my ears purely based on it's vibe, energy and sonic physicality. One of my favorite film makers Wong Kar Wai said we are all going back to the same supermarket trying to cook something new with the same ingredients. I think that's very much the case with dubstep, there's very little new technically (no cut breaks, or idm glitches or accompanying technological revolution) so it's all about ideas and vibes and creating something that feels fresh from the same old drum sounds, sub bass, delays etc. To me it's very successful in that. And yes, I agree it feels very unfair to dismiss is so contemptuously. The people involved are not some hype following trendies, they're very serious, committed people who have invested a huge amount of time, money and love into this scene. Saying 'artificial energy' is just blatantly fucked up, the energy of this scene to me is the opposite of artificial, which is what attracted me to it.
Me and my girl are starting our own rave series in Berlin and we'll be playing both grime and dubstep and booking acts from both sides. I'm actually really pleased to see that unlike in drum and bass where the genre fractured and went into different directions and nameable sounds it seems grime and dubstep are weaving through each others borders and that there will be some interesting developments yet in the space between.