The STEEM tokennomics mechanism is like the economic engine behind the STEEM blockchain platform. It's all about creating a system that rewards and encourages users to get involved and share their content on STEEM.

Here's how it works: When users contribute by creating or curating content, they earn STEEM tokens as a reward. These tokens serve as an incentive to keep the community vibrant and active. The more you contribute, the more tokens you can earn.

STEEM's tokennomics have gone through some changes over time. At first, new tokens were continuously created to reward users. But then they switched to a fixed schedule to control inflation and make things more predictable.

They've also used different methods to distribute tokens, like mining and delegated proof-of-stake (DPoS) consensus, not forgetting the Proof-of-Brain mechanism for reward. The goal is to make sure tokens are distributed fairly and encourage as many people as possible to join in.

They've also made adjustments to how rewards are given out. This helps prevent too much power from being concentrated in the hands of a few and encourages a diverse range of people to participate.

All in all, the tokennomics of STEEM are designed to strike a balance between rewarding users, distributing tokens fairly, and keeping the platform sustainable and decentralized. It's pretty cool how they've thought about all these factors to make STEEM a thriving community.