He obtains other people's work (often under false pretense), has it copied, has his name put on it, and then claims he invented it. See posts in the members vendor feedback area.
He also charges 30% restocking fees on returns to ensure no matter what he gets his profit from every sale. That is if he allows the return at all. Advertised lifetime warranties don't seem to apply to items that break. Again, see posts in member vendor feedback area.