Unstable currencies, scams, price manipulation, all investments are high risk investments, ... your money is safer under your bed producing nothing than in the self proclaimed Web3.
Edit: on a second note, this is peak efficiency. Most crypto currency projects are a hot potato game. You buy, and then you need to sell meanwhile there are still buyers. As the technology has accelerated this game we got to the point that the only way of winning is for the founders to pull off as fast as possible. 8 minutes seems quite on the mark.