I don't even think reviving and giving potions or whatnot is that important, if you wanna do you do it, what should be more important is the etiquette involved AFTER the kill. Mainly the PM's. Perhaps people being more friendly, by not being rude and snotty when sending an altered PM. As I have had.... the priviledge of experiencing already. I admit I was leaving small comments at the bottom of the PMs the first few times I attacked, but it was mainly random crap, because I had no idea what I was doing. But to change it completely and pretty much blatantly taunt the person you've killed is beyond unfreindly.
Sure being revived it great, but maybe a little courtesy shouldn't be beyond that?