First off, /fi works perfectly fine with tags located on the right side.
Secondly, putting one's faction tag behind the name has its advantages, too. For instance, you can prevent others from metagaming through checking the playerlist, or at at least complicating. You also generally draw less attention on your faction when a numerous amount of members is ingame, some preople prefer this over openly showing that they're cuurently on a large convoy or doing a raid or whatever. However I admit that the thing with the PM can be a little tedious.
Imo, this is not really harming the gameplay. It's merely a possibility for faction members who want to play more incognito.
Oh and once several members are grouped up you can simply list it by group numbers and you'll have 'em all in a row anyhow.