I'd say deleting a user is pretty idempotent: deleting twice is the same as deleting once, as long as you aren't reusing IDs or something silly like that. It's

I'd say deleting a user is pretty idempotent: deleting twice is the same as deleting once, as long as you aren't reusing IDs or something silly like that. It's more that GET requests shouldn't have major side effects in the first place.