For what pupose? It seems to me that you lack communication. Imagine the situation - you defeated someone in PvP, and then he bombarded you with angry and insulting messages, who would like that? That’s the beauty of this game, that there is pure PvP without unnecessary personal contacts - you attack a city (base) built by another person, but not a person, as they say “business, nothing personal”.
I saw enough of this at "Rise of Kingdoms", where people fight and attack each other based not on rational thinking and practical necessity, but on emotions and personal relationships, while also insulting each other in chats.