The +joust system has now been completed and can be read about in +help +joust. It is likely that the system will undergo some tweaking as it sees more testing, and the gain and loss of Renown has not yet been added in, but the basic functionality of jousting someone else is now functioning.
The +rumors system has been at the same stage of completion for some time now (see +help rumors), but we haven’t announced this as we had hoped to get the Renown in there. That will take a bit longer, so we would like to announce it now anyhow. Basically, it will work as it should for untargetted rumors and targetted rumors using Influence rather than Renown.