I would say congrats to them, it must have been a lot of annoying failures along the way and I'm sure that some other guilds will learn something from it.
But. I don't like them, I don't hate them. I'm indifferent to their achievements as they are not my own. I don't know them - I know of them. Personally I think people put a bit to much value in "being the greatest", because it really doesn't matter. Like opinions or posts, even though me saying that makes my own post redundant.