You neglect that Steem only has value because the content generates it. It is content that has value, and provides that value to Steem. The content on all other social media platforms has immense value, and we'd see higher value for Steem were rent seekers not 'borrowing' it from creators without nominally imbursing them.
That's why our userbase is not growing now. Wanna make that problem worse? Decrease rewards for creating content. Retention is dismal because author rewards are being skimmed by curation. Curation is nothing more than rent seeking, and is the brakes on appreciation of Steem that keeps the token from creating capital gains.