Yes, Defi if the new crypto hype, we need to be careful, will not take so long to the first Defi scam project appears, like happened with the Icos, it's just a question of time to something bad shows up in this Defi scenario.
DeFi scam projects are already here but they aren't that hard to detect, those scam projects have nothing to offer than DeFi hype and useless use case, by doing your own research you can find out which DeFi project has serious team or suspicious team