Well the thread doesn't make me sick.
This thing about having to ask permission to photograph someone on the street, as far as I am concerned it is for something „higher“. It is either reportage or an art form. Which enriches mankind.

If people have bad thoughts about it, they have bad thoughts themselves wherever those thoughts may come from. If people were innocent and act innocent, things would be fine.
For me it often has a feeling that people accuse one of doing something bad although they do not know what the whole thing serves.