Symbols next to mob names

[Bixby]

Actually, these symbols did not originally appear on the mob when it first spawned. Here is what happened:

Someone came along (before you arrived) and either attacked a mob or was aggroed by it, but that mob had a LINKING mob, or 2 mobs, to it. So now this player is being attacked by either 2 or 3 mobs. He either dies or runs away and the mobs chase him but eventually reset to their starting position again. You come along and NOW see [K] at the end of the name and 2 more letters on 2 other mobs. That will indicate to you those are linking mobs and you were not the first to attack them either.

This is not correct. Every mob in the game has a letter. You can watch them spawn with the letter already there, before anyone's done anything to them. It's nothing to do with linking or with anyone else's actions.

On testing, it looks like I'm not quite right, either. You don't get to see the letters (anymore) until you (or someone else?) has engaged. But I just had mobs L, M, and O, with no N.