Is "PvP" farming allowed?

[realistic1]

It's cheating the matchmaking system (or lack thereof), but technically it's not against any rules as of now.

I think that many of the rules are fairly subjective (advantage always goes to ES) and I believe I could make a pretty good argument that creating two teams that agree to trade win/losses for quick profit would violate the following rule:

Activities that destroy game balance:
Exploiting SQUARE ENIX programming that does not run as intended to gain profit

When presenting this argument I would also use the following verbiage:

The list of policies below is meant to give the player an understanding of the types of activities that are prohibited within FINAL FANTASY XIV. This list has been provided to our players as a general guideline for the various prohibited activities and is not intended to be an all-inclusive outline of every prohibited activity within FINAL FANTASY XIV.

There is no doubt that two teams that agree to bypass the random match system by agreeing to trade win/losses offsets the balance of the game as they will quickly gear having a distinct advantage over those not manipulating the system.