Guns of Icarus (GOI) has one of the most outstanding gaming communities that I have ever had the fortunate part of being in; however, I think we as community can improve even more with two moderately simple suggestions.
Suggestion 1: Creating a list that entails community standards for treating players both in and out of matches (if there isn't one already), this list would include some tips from appropriately complimenting a player to how to properly deal with a player who is being unresponsive. If possible this list could be placed somewhere in game, and could possibly have an achievement tied to it that promotes reading and understanding it as a basis for player to player communication.
Suggestion 2: A second type of commendation (a community helper commendation) separated from game-play and more oriented towards player to player/community, in which you give commendations to those you consider to go above and beyond to help others or make GOI a better place. For example, perhaps player xxx helped out crew zzz with a few questions they had about the game, in turn crew zzz being appreciative of the answers, give player xxx a community helper commendation.
These are my own personal opinions on tweaks that could be made to help establish an even better community, any feedback or other ideas would be greatly appreciated as my only goal in mind is to find a way to further develop Goi's amazing community.