I think the 50% discount is just the outer shell of creating an incentive to make the project's token price rise as fast as possible and make a profit of over 100% against BTC. For example token A initially cost 1 satoshi, but after opening a 50% discount campaign when buying BTC through the project with the requirement that the customer needs to stake a large amount of token A, token A is immediately bought too much and price increased to 3 satoshi. The project team can completely sell token A for BTC, pay to users, along with profit from token A they hold ...
This is just my opinion only