I wasn't even aware of the fact that posts disappear from tags after seven days, but yes, I understand that it's a significant problem for users who post under specialized tags, such as your #incredibleyou.
I love your bug bounty idea, but since I'm a month old Steemian I wouldn't be able to contribute much for now.
As per other improvements that we need, I've recently shared an idea about user interaction tracker.
Cheers! : )
Ideas are contributions too, not just moolah! :-) Thanks for the link, I'll check out now.
Cg