No wonder the copycats trend is because like in the past, when bitcoin bull run in 2017, there were a lot of projects using Bitcoin name and now it's happening at YFI, if you want to invest in projects that are indicated as copycats, you have to be a little vigilant and never be greedy when copycats project goes up because you can be caught in a trap
And aside from these YFI copycats, is YFI itself really worth to invest? In my opinion, they are just capitalizing also with FOMO as checking their site -
https://yearn.finance/earn it says they are still in beta. So what added value are they offering to the community right now why they are very expensive in the first place? So you also need to be careful with this YFI project itself because they have no solid foundation why they are having that kind of price.
At least YFI has a beta product to showcase and also very good backings, unlike many new other copycats. However, I'm not and don't pkan to invest in YFI since i don't FOMO into coins because of price surge. Some people know nothing about YFI but due to the consistent price increase, they invest.