Ramones you must be aware of the problem. If you send pm's to other traders asking them to stick to certain prices, that appears as a "request" from the most powerful alliance in the game.
I believe that you are sincere in your belief that this is just a gentleman's agreement, but for those on the receiving end of those pm's it appears rather different. And now that there is an accusation of Ainran raiding your competitors with scented stuff, it seems as though maybe you cannot control your friends to keep your trading nice and neutral, like i'm sure you want it to be.
Anyone receiving a pm to you saying to increase their prices has to surely think carefully about what to do, and not for purely neutral economic reasons, unless they are totally ignorant of who you are with.