I'm sure there has probably been 100 posts on this subject. I've run in lots of groups, random and guest in guild groups. I've run solo unbuffed a lot of the time, especially in old frontiers. Some groups would wave, when grouped and fighting some enemies would turn around and leave us to it. The vast majority of the time They would gank/add. Quite frankly I do the same. "Add and be added upon" a bard friend of mine Ortunga once said. These are realm wars, I recon you should just /rude people that whine about you adding, or /rofl. looking around at the start of a fight to make sure you're not adding has wound up in a group wipe on several occasions. After all the enemies fighting you're not adding on don't know you're not adding. There mates they may have just called for help won't know you're not adding either. Hassle Mythic to introduce a kind of fg vs fg instance if you don't want a realm war.