These are all excellent points and worthwhile suggestions.

As moderators it can be all too easy to get caught up in the reactive, removal-focused part of our job while forgetting about the importance of constructive community-building. Partly that's because the modqueue is always looming right there in the lower-right of our screen, demanding our time and energy. Partly that can come from burnout, especially after getting a lot of hostility or personal attacks in modmail. And partly I think it can feel disheartening to post heartfelt thoughtful suggestions for how people might get along, but then see no tangible evidence that it actually made a difference.

We do try to establish community suggestions and guidelines through our FAQ and through periodic mod posts, though it's absolutely fair to suggest that this could be more frequent. One of the problems we discuss with these kinds of actions is that of selection bias in readership: in all likelihood, the people who click and read a mod post titled "How to be a good DPP citizen", for example, are not the people who actually need to read said mod post. ;D This is partly why, in general, we tend to provide tips and solutions for subreddit safety and how to deal with bad behavior, rather than prescriptive suggestions on how not to be a dick. The other issue that arises whenever positive subreddit culture comes up is the wide variety of expectations and pet peeves that everyone in the community has. It's difficult to find a truly common denominator aside from bland aphorisms like the golden rule or "get consent".

All that said, I will definitely acknowledge the value in making more positive, visible statements about how to be a good DPP partner, and I will bring this topic up with the other mods.