Emil O W Kirkegaard

Doxxing: Publishing private identifying information about anonymous Internet users Not Doxxing: Naming someone who attended a public rally

Publishing their addresses and phone numbers might be doxxing, but once they attend a public rally, their presence wasn't ever non-public.

In theory, yes, but in practice normally attending a public rally is generally private. In near future, automatic facial recognition will

be used on public images from rallies, automatically identifying them across all social media based on their unique face. Privacy lost.

I'm not sure whether this loss will have net positive or negative effect, but it is inevitable. Large databases will be built.

This is near future, not recent past? https://thenextweb.com/dd/2015/10/15/watch-this-open-source-program-recognize-faces-in-real-time/ …

Facial recognition is there, but big public databases and (paid/free) services are not here yet (afaik).