Would Cross Realm or Megaservers be that bad?

It would reduce the necessity for community-driven solutions, such as Dungeon Leveling guilds being a thing, potentially.

A large part of socialization with others, and forming relationships comes through shared experiences. The way it currently is, there is incentive to be friendly and actively build relationships with others at similar levels, with similar playtimes. This is more or less _the quintessential factor that separates Retail from Classic for me, and precisely what I enjoy about it.

May I suggest taking some initiative and forming a Dungeon Levelling guild, such as we have done on Faerlina, Horde?