Recently I opened a issue on DEV repository but more appropriate here.
Author can pin a comment on this posts for good responses (can be useful for #help) or for goods questions and resources.
I'm going to use a very simple example that I've already seen several times on DEV.
The post is called "Who will participate to the Hacktoberfest 2020? 🙌🏼". (you can find it here)
And one person comments by asking for help with his plans for the event.
Why not pin this on? Or pin simple rules for commenting.
I'm not alone for this idea, could be great to integrate at Forem.