My favorite argument against Solo oriented players; “If you play solo, you should play a solo game.” (Or some drivel to that effect). Fine, show me a game that’s got over ten continents worth of exploration and everything that entails, with various different plots and storylines that have been getting added to for the last 16 years (For better or worse), with the ability to create a character race and class that appeals to me, that I can dec out in whatever gear/appearance I want and can collect, all with challenges that I can complete on my own merit without having to deal with XXMonkeyLoveXX the obnoxious Demon Hunter, and I’ll gladly give it a look.
Someone recently made one of those “dumbest reasons to get kicked from a group” posts, and last I saw there were around 175 different reasons to play solo.