Not to pile on, concerning the many, glaring errors in your proposal, logic, and reasoning but...
What you are proposing and stock buybacks are in no way related. Corporate stock buybacks are not "burn un-issued shares" nor are they "slow the issuance of new shares onto the market". Corporate stock buybacks are, well, just that- the company that originally issued the shares, buys them back.
Some, similar, approaches to the issue would include things like:
- SPL declares they are going to 'buyback' up to 100,000,000 SPS at no more than $0.01/token
- SPL announces that distributions of SPS to LPs and License holders will no longer be 'issued' but that instead SPL will buy SPS off the market to send to those accounts.
- SPL stops issuing SPS. All Rewards and Distributions (Staked/LP/Brawls/Battles/etc.) will be purchased off the market and recycled back to the game (until SPS price hits a certain target)
- And a variety of other approaches.