The adage says that something that goes up quickly will go down quickly, for me YFI or any other Defi really depends on the trend, currently Defi is indeed popular with many people, but one day there will come a time when the trend changes and makes it plunge again.
For anyone who invests in it I recommend to remain careful and not be complacent with the light brought by Defi, invest sufficiently because everything that is excessive is not good.