Thousand Creations was a member of Blue Brook Guild. Even though Stolord made his head and face filthy with dirt, he was considered a rare expert among players. His individual strength might not be weaker than the so-called Five Great Experts.
In order to have a name like the Five Great Experts, a player first had to have incredible strength. Next, they also had to have incredible popularity. Once there were many supporters, the Five Great were made. But Thousand Creations? He had a bit of popularity, but he had an incredibly bad fault: he liked to kill steal.
Blue Brook Guild was one of the Three Great Guilds. But because of this, they had high expectations for their guild members. Although they didn't go as far as requiring that members lay low, but kill stealing, that sort of nasty behavior, was forbidden by the guild. No one could complain about this kind of rule.