Just chilling and sharing a stream of thought…
So how would a credibility system work and be implemented. What I envision is something similar to the up votes…
You have a credibility score, it starts a 0 neutral. You post something People don’t vote on if they like, the votes are for “good faith”
Good faith is You posted according to rules and started a discussion You argued in good faith and can separate with opposing opinions You clarified a topic for someone If someone has a polar opinion to yours and is being down voted because people don’t understand the system Etc.
It is tied to the user not the post
Good, bad, indifferent…?
Perfect the system
You’d need to limit the capacity to vote on credibility to people who are members of the community. If you haven’t joined, you can’t make a judgment about what is or isn’t a good faith post, but your own post can be voted by members. Rather than being attached to just the user, it would probably be better if it were referenced to the user per community. Even so, it’s essentially karma, and could probably be gamed.
Otherwise, you’ve just reinvented upvotes.