The answer of play in a different kingdom would fix the issue, but would create the problem of me and my friend wouldn't be playing together. To me it's the difference between purchasing two single player games and just both having it and talking about it and buying a multi-player game and playing together in the same guild/team and talking strategy and politics and all kinds of other things. I am also making the assumption that the Devs want people to play with their friends and that is one of the reasons they created the invite system. So saying play in different kingdoms to me is just an easy answer that in my opinion does not answer the root problem of I want to easily play with my friends.
And as far as just creating an account on the forums you are correct fluffy I have been playing for quite a few ages and only read stuff in the forums, this is the first time I have ever felt the need to post something in them.