Well actually that sounded harsh and too much sarcastic. He doesn't mean that his actual career is the MMO games he played, he is just telling all of us his background in games.
As for it being too early, to be honest it is the right time to start building a guild, after let's say 2 years when we go for release, you will have a ready and structured guild, that will take on the game from day one while others will be just starting to assemble their guilds with random players.
In many other games still in development you can see formed guilds for 3-4 years now, waiting for the game to release and conquer it from day one :)
Plus you can play other games with the guild until we release in order to see how good people are, and not only that, you are finding new friends to chat and discuss SoH with ;)