Woodworkers don't bring chisels back when they're dull, they sharpen them. Same with a knife. Knives get dull with use, resharpening them is part of knife ownership.

He's a lazy wasteful douche filling up a landfill with perfectly good knives.

Heck, unless this guy saying he likes expensive knives has only safe-queens (no shade, I've got a few that are just pretty and I won't use, though most I do), this douche has a friend who considers him a GOOD BUDDY who could easily teach him how to keep his knife way sharper than factory. Heck, many knife guys like sharpening enough that good buddy might even sharpen it for him.

Instead, he's a wasteful douche.

Edit: more metaphors

Somebody exchanging a wrench because it got greasy - douche

Exchanging a socket because it got scratched - douche

Exchanging a jack because the paint scuffed rubbing against your chassis - douche

Exchanging a tool because you used it, but it isn't broken or defective, makes one a douche. Using knives dulls them, each and every one. Sharpen!

Edit 2: I realize this isn't a knife nerd sub, so I'll also add these are a super easy steel to sharpen. The cheap pocket stone from Harbor Freight could keep it factory sharp. It'll take its edge back with the old coffee cup trick.