How to find information about your viewers (e.g. screenshots taken)
I found a very good tool you can test and use for your own marketing purposes.
The tool is: https://scoperchat.com/
It will tell you a lot of information about your viewers such as:
1.- How many people Watched
2.- How many people Joined
3.- How many people Tapped
4.- How many people Talked
5.- How many people Shared
6.- How many people Snapped (took screenshots)
And their profile pictures. Sounds scary but hey, its social media at the end.