Hm. I don't really hate Ed Hardy as I don't really know anything about him, but my pronounced dislike of Ed Hardy apparel stems from real-life experience out in the wild.
As merchandise, I noticed that, say, Ed-Hardy themed 'protective cases' and the likes for iPhones are basically the cheapest crap with some, yes, colourful Ed Hardy design on them. For the seemingly brief period of time I saw them featured and peddled, they seemed awfully overpriced.
I don't seem to frequent the walk-in stores that have Ed Hardy apparel on sale, so no statement on that from me.
Interacting with people that prominently feature Ed Hardy apparel that is identifiable as such involved more than a cup of stupid and an overlying theme of abused animals, neglected children, tattooed stars on faces and bad manners. I don't really care about 'trends' beyond being able to ridicule them on sight, but if Ed Hardy ever was trending, I missed it. It's just there, mostly on people I would rather not want to interact with if I don't have to. That's that.
I think my negative experiences hardened into a fistful of prejudice, so I'm really somewhat trying to remain open to any person I encounter. It's just that when I see Ed Hardy, I do expect things to go south. They admittedly don't always do, just as men with long hair can be cool, men with long fingernails can be gifted guitar players instead of lazy shut-in antisocial slobs, et cetera, but wearing Ed Hardy can invoke the worst expectations and behaviour in people just like going saggy pants OG in a suit-and-tie event or cross-dressing in church. It's nothing personal, just be aware and master the situation.