Ge 

 Yeah - I follow a few npubs that have changed their name & avatar.

I don't know who they are or why I'm following them but I know I at some point consciously made a decision about them.

Keeping a small local cache of information about my follows would be insanely useful. I'm concerned that at some point scammers will take advantage of the switcheroo. I'm careful with who I follow to mitigate this risk.