You are right about one game where I overreacted about one people just going AI [not that your words here are really better versed].
And now you are reading what you want to read. You created the pledge, but you are the one joining games and not really following it. The goal for everyone should be to do everything possible to win the game, how is your invasion helping with that?

You say that I'm kicking the game - you are doing the same by supporting the strongest nation. Isn't kingmaking against the pledge? Sure, you can say that you can attack him later, but that wouldn't happen if I stayed and fought the war, maybe till the end of game.
You prefer to use vulgar words, where I put simple explanation. I could say that you are trying to take revenge for example for me not liking your guides or fighting in another game. But that would be probably a lie. You have the right to attack anyone you want, be it game leader or mid-pack member. And I have the right to go AI, when I see that it can make the game more balanced and wake some people up. And I have the right to comment on people not trying good enough to win - I am not telling they are terrbile, simply suggesting more mature to MP approach. And you should know really well that it's true - you are one of the best players around after all and you know diplomacy quite well.