Gentle Rodriguez
Member
I think without them Dota could get to 1 million concurrent at it's absolute peak. With them, who knows how high the ceiling is. Although this number is assuming Dota 2 never takes off in china like Dota did.
I remember playing Age of Mythology(an RTS) for years after it came out only because of the custom game modes and there were tons of other people right there with me despite the fact that it wasn't the most popular game out there.
Just think of the amount of people that say they don't want to get into this game because it's intimidating but like everything else about it.
Edit: Mirana, again. I hope she loses again.