Too restrictive.
"* Diplomacy should be handled in game once your respective empires have met.
* Treaties "above" Trade and Research Alliance are not allowed under normal circumstances. You will be kicked for violation."
Those two mainly. Diplomacy via in-game only is *far* too freaking slow
that and I can see if you don't want to allow Partnerships, but why not Military Alliances?
Don't like the no gifting or trading either, but eh.
Phoenix-D