ICO, IEO and now DeFi.
Have you seen that none of these are long existing? ICO created hype back in 2017, then IEO come into the ground and now it's time of DeFi. But with all of them, a lot of people were attracted and get scammed. It's not that easy to make money, dude. Don't run after anything which creates significant hype. Take time, observe and make decision. You have enough time to make profit.
Yes there are hype that are good backed by a good developers with a solid road map Bitcoin's road to greatness is a little bit of hype and so are the other coins in the market, and so many whales are doing that also, and they have reasons why they should, investors should be fully aware on why the coin or project is being hype, is it hype by whales to dump his shares or real investors because of it's potential.