Please have in mind that it was just a quick response so there are many other general and obvious suggestions are missing.
Correct me if I'm wrong, but didn't you have some kind of training on Telegram for writing more efficient and better quality SM posts and generally for participating in any campaign?
That seemed like a good idea, the question is how satisfied you are with the results of that experiment.
It was about bounty campaign - how to perform in the social networks, not anything related to forum posting.