Respecting alliances / a truce or an agreement about a certain region for instance.
Although one is not obliged to respect them, I played several games with honorable enemies who were absolutely true to all arrangements made in the game chat.
Lately, I have to say that more and more I negotiated an arrangement, I respected them only to find out that others never intended to respect this arrangement. When they feel it is their benefit they break the truce earlier as arranged or simply without the one-turn notice.
For instance a stark example - a game I currently play: Early in the game a player proposed a truce to me, I agreed. The next turn he deliberately stabs me and tells me he just changed his mind- The "explanation": I didn´t stand still but tried to grow (in other directions) and get some additional regions.

So I´d like to get in touch with other players and their opinon about the obligation to respect the arrangements made in the Game Chat.