I'm with the 'it's an age thing'. I've seen Leeds since the late sixties and it transcends hate.
Not the 'Hate Man U/Chelsea/Liverpool/whoever because they win things and are always on TV'
Not the 'Hate Wendy/Barnsley/whoever because I have to work with their fans and get constant gyp.'
No, Leeds are a special case. Under Revie, they were thugs and cheats, nothing more (The Damned United summed that era up pretty well). With success came a huge increase in their numbers which is normal. However this increase in 'support' included a vast number of thugs, retards and people who think Leeds are the biggest team in the World (aided and abetted by Look Leeds).
If you can get hold of a copy, read Hunter Davies' The Glory Game. It covers the 1969/70 era when Leeds used to do choreographed warm-ups, wore poncy little number tabs on their socks and every game at Helland Road was intimidating to say the least.
But it still goes on. Did you see the tiny pocket of Bristol fans in the corner yesterday? Surrounded left, right and behind by Leeds scum? Well in (I think) 1990 we played there and there were just 1200 Blades (all the tickets they gave us). Arriving (incognito, of course) at the ground, I saw my first ever police helicopter hovering over a football match. Ditto a huge Leeds banner being passed around the ground. While warming up, our GK Simon Tracey was practicising long boot-outs (some things never change!). When the ball went into the Leeds half, they kept it! Soon, we had no balls left to warm up with. A small thing, perhaps but one that utterly sums up those scum. Our midfielder (Gannon) had his girlfriend in the stand. She was glassed. They had Gordon Strachan playing. If ever a player and a team were meant for each other... I have never seen fans in such a frenzy in an English ground, whipped up by the PA.
Oh yes, Leeds are la creme de la scum - have no doubts.
Have they changed? Not at all. The ridiculous Gradel should be banned for a season. The up-himself Beckford should get a slap everytime he walks on a pitch. Hewson, Becchio etc. All scum.