What is Steem used for?

Could you please elaborate on the various uses of Steem? I understand it's a blockchain-based platform, but I'm curious about the specific applications and functionalities it offers. For instance, how is it being utilized by content creators, and what kind of incentives does it provide for their contributions? Additionally, are there any other industries or sectors that are leveraging Steem's technology for their operations? I'd appreciate a concise yet comprehensive overview of its diverse range of applications.