As for general forum rules as such you can take inspiration from here - https://needgap.com/problems/2-contributor-guidelines-for-needgap. As for literary rules, I'll have to think about it; I'll come back with a few in a couple of days.
P.S. It would be nice you can post comments to an existing comment thread as new threads each time breaks the old threads and makes it hard for a new visitor to understand what is happening.