I love your testing series. Very valuable info you're sharing here.
Perhaps you could also make another test and try to engage with some people (let's say 100 different users) and comment their photos and see how many of them will comment back and follow you back.
That could be also interesting.
ps.
I used to be able to monitor how many people viewed my post but I dont see it any more. Do you?
I believe the views page was just removed from the interface. I read about it somewhere just a few days ago.
That is a good idea commenting on photos.
i'm very sorry for such a late reply. have been away for several days but Im back now :)
just wanted to thank you for your previous comment
all good!