Dear Square Enix...

[Kuwagami]

snip

People's name appear in orange if you are in the same FC/LS too, have you checked it isn't the case ? If it wasn't 2-ways, it would have no sense to have a confirmation pop-up to confirm a friendship in the first place.

As for RMT, I can guarantee you you can empty your BL every week.

I don't know of any other system that auto-deletes you from somebody else's flist when you delete them.

generally in my previous MMOs, it just flags you perma-offline. Now if you meet them in game well... idk, could be awkward if you never explained them why you don't want to deal with them anymore