Hermes is in its own league for disdain. The pretense and games you have to play to get a birkin or kelly bag, and the fact that employees are trained to lie about product availability (this can be confirmed by reading employee reviews online) makes them worthy of some contempt. For those who simply don't like the designs (i.e. too plain) I don't think there's disdain. For who those who do really hate it, I think it's due to company practices.
You will be pleased to know that my dog ate my Birkin bag, and yes I did cry, a lot, not because I liked it, it was a present, never liked the shade of purple (looked like drinking too much red wine and then getting rid of it) and ostrich leather to me always looks like a plucked bird with goose bumps, but since I had it for 15 years and never wore it, thought I could sell it, while I put it on a white background, the phone rang and I left the room and Harvey pounced, to add insult to injury, he swallowed the key, so trip to the vet, x-rays, and checking his errr offerings for several days until the key reappeared and a surgery was avoided...
Personally I do like Hermes, the quality is fantastic, I do like the classic design and I never had a problem with product availability.