no, buyback is not a new way to attract investors and there are already many examples of projects that do it that way but still cannot make a big demand in the market. ways like that can be done if the product has attracted a lot of people
true, to attract investors the team must make other strategies besides buying back the coins that have been traded, I have participated in several projects that do that, but the price remains the same paid there is no high increase even though such a system is done