[belorn]

It would raise some flags if my bank representative or doctor ask for a photo copy of my passport. Asking to simply see it, given that they have a specific reason to do so, would not.

Online however there is no such thing to simply see something. Everything is a copy that can be used for any purpose.

A few years ago there was a major leak at a porn streaming site with a large number of people getting their passports leaked. It was reported as a major disaster for those involved.