Reactions to Glastonbury/Reading/T in the Park/whatever British festival you care to mention: "Oh, he wears that item of clothing, he speaks in that accent, he must be a twat."
Just from when people get interviewed on the TV, though? You haven't met the buggers. I know it's irritating to hear people talking like Victorian public schoolboys in 2011, but I doubt they chose their upbringing and accent from a list at birth. If it's for liking a band you consider to be shit though, in traditional DiS style, I say "fair enough."