On a server, with friendly fire damage modifier set below 1.0, it appears the friendly fire modifier is applied to falling damage, but not clan members hitting you. I cannot reproduce in single player, but the FF damage mod may simply be disabled there
However - given that Funcom will just ignore this report or ask you to ‘post it using the template’ I’ll see if I can find Kiki’s guide to how to actually use it, so you can give it another go (if you feel like bothering…)
@Pugilist has a step by step I can’t find right now.
Basically fill in all the fields and don’t use the button, scroll down to where it auto populated, select the auto populated template → copy → paste into new post.