The reason this is a bug report. When you leave CoF it clearly stats “you will lose all favor”. However, what is not clear, is that the favor is for your account. Why would I care about losing favor on a level 6 alt???
I have a level 6 alt that I joined CoF - Asked if I could join both MG and CoF, people said yes - So I left CoF on my lv 6 alt and joined MG.
I just lost 90k favor due to this. This is absolutely dumb and should be resolved in the future.
I could have spent 5 minutes making a new alt, to join MG but instead I lose 90k favor.