The game needs to cater to the attention of the players. It would appear that none of your are keen on that concept because you only want siege warfare or you only want fair fights. You accomplish that attention garnering by covering multiple bases. You appeal to the type of granularity needed to promote the other. They aren't mutually exclusive. This isn't a zero sum game when trying to figure out player retention..... but you guys seem to want to believe that. It's statistically backed that the large majority of MMO players prefer to play solo, but want the game to be populated when doing so. Allowing players to choose when to participate in social activities, rather than forcing them, is fucking VITAL to a thriving MMO experience and population.