I don't get it? So, for example, if I have 10 BnB's in my portfolio, they will buy my coins in exchange for BTCs? I just use my BnB coins to reduce my tradingl fees and not for selling nor intend to gain profit from it. The reason why I got into Binance in the first place was because of its application which currently run smoothly in my phone, that's it. Don't have any idea about earning through their own coins up until today. Now that I have gained another knowledge about it, I was thinking of acquiring more since the future of BnB is brighter than I expected.
They will buy it on market. They won't buy from people who aren't selling their BNB token on market (i.e keep it only for paying fees, as investment, or keep it on wallet).
That's their buy-back strategy u until BNB token supply reduced to 100 million tokens.