It's not full on generosity-type kindness, but... my last couple days in Hydatos with my boyfriend were spent doing NMs, and we kept encountering these two Miqo'te girls in matching outfits and appearances but different colours (and subraces). They made sure to always give us Protect and Shell (and didn't really give it to anyone else). One time I /dote'd at one of them for giving it to me and the other did some kind of angry emote, so I think they were together. And I think they got the impression my boyfriend and I were as well.

It was some nice solidarity and it was fun checking the player list and seeing them there when we arrived. I usually don't have positive experiences with strangers in this game.