nope i think rep is from your posts getting reactions

why does that photo you sent go from 3 in the last 20 minutes to like december lol

oh does rep activity only show activity on status updates? hmm thats weird cuz i deffo got more than 4 rep lol

Reputation is only affected by the reactions that you get. Afaik at least.

idfk i think that was only showing from profile posts, if you go to the reputation activity page you can choose at the side what you see