He was making a joke about Rockuman's name. In Japanese,
rokuman is 60,000. Then he said that soon you would be up to 100,000, then 1,000,000, then 10,000,000, then 100,000,000.
Anyway, now that that's out of the way, welcome to the fora, Rockuman! I hope that you enjoy your stay and that you learn all that you could wish to learn!