[tareqak]

I would actually argue that this situation is a case of a unserved need/business idea: a site with stock photos of people where it is possible for a potential user/buyer to negotiate what a particular photo would be used for with the person who’s photo is taken.

In my mind, it is similar with how I ask for references: I ask people who I think would be a good reference for me if they are willing to do so, but I also ask permission again them each time I need a reference for a given company. If there is going to be a number of companies reaching out, then I combine/bucket a number of requests into one e.g. “Three companies need me to provide them with a reference, so could I please ask your permission for those three companies”.

Yes, there is more going on in the case of copyrighted photos, but facilitating communication is one of the reasons the Internet exists.