Example. A -I released this tool!
B - Wow nice how long did that take
A - Thanks, 6 months.
At this point, the conversation is done unless both like each other's comment, which in such an exchange would be encouraged.
If C comes along and says 'this tool sucks', even if 50 people like it, if A doesn't, C is done commenting for the day.
In fairness, I haven't really thought the whole thing out in detail, just some rough ideas. I appreciate pointing out challenges and dislikes with it though.