This was from Dwunot's PBf.
I teleported into HLK from the Green.
Nov 21, 2013|Lv 40|High Lord's Keep|an elite stairwell guard by slice
Nov 21, 2013|Lv 40|High Lord's Keep|vs 1: <37> Laeliana (100%, slice)
Now, if the xp penalty applied, I have no idea.
But it definitely could have since it is listed as a mob death, and based on Umiron's reply to my request to remove it, I have to believe there are scenarios where it will, which is not to say it always will.
I wish I knew who posted the original thought that prompted my request.
Maybe it was cause I fled a few times and multiple mobs hit me before I died, but was still within the adrenaline period?