The original post: /r/privacy by /u/thedeadfungus on 2025-05-03 08:22:11.

If you are connected to Instagram and share a post using the share button to copy a link for example, it adds a parameter to the query string called igsh which I believe is the one holding some information about the person sharing.

Why? Because when I sent that link to someone that included the igsh parameter, it then popped up a window in his app on his phone (a family member this time) that showed him “John Smith shared a link with you - follow him?” (with 2 buttons at the bottom to either Follow or Cancel)

That is pretty insane and stupid that they do that, so in case you do not want to expose your identity to some people such as in online groups, be careful