What is it with people revealing their support requests like some sort of incremental escape room riddle?

Internal operations escalates an issue to development regarding an error importing a binary file format.

Confusion ahoy and blows out to 5 developers (3 senior) before the OP originally comes back 24h later to note that the client requesting this also added a note to say that the software that produces this binary may have changed formats. But they didn't think seem to think it was relevant enough to include.

Honestly unsure what measure of this is lacking basic common sense or basic human decency. And further astounding that for once the client did the right thing and this was occluded internally.