Glad this is staying a civil but spirited debate because it's an interesting philosophical argument.

On one hand people shouldn't expect privacy in a public space, that is true both online and offline. If however, in physical space I followed you around 24/7 and provided commentary on every comment you made, you would want to punch me in the face.

For a moment let's set aside the technical responses such as: encrypt your messages, or run your own private relay. That kinda defeats the purpose of participating in a public network. 

So, is the act of someone programatically categorizing your content a form of harassment? Would providing an opt out mechanism satisfy both parties?