I don't know who is to blame for this -- I think it should be the entire team, not just the developer for every time I click a link from a message somewhere on my phone and a website opens which opens an app and it says "congratulations, you have performed this operation (that isn't idempotent)". Like ok, but why are you doing stuff with a get action... Shouldn't you prompt people to ask in the app hey I am about to do something, do you want me to?