I'm in a game right now with a top 10 player as a neighbor. We tried to reach an agreement about our border/truce but it couldn't be compromised. After I didn't agree to his terms, he said that he was a top 10 player with a "reputation" and he has "friends at the top". He said he's going to make my decision to attack him a "stupid decision in the long run."
How do I deal with someone who threatens me by his reputation and how do I deal with someone's ego?
This game is not anonymous, so the player in referencing may be reading this - but all the better.