What do you think about Defi's hype this time? Why are people willing to pay such a large fee like that ?

IMHO, I believe Defi was already slowing down, thats why it's riskier to invest now in most Defi projects, For that reason, I believe that some investors are just speculating on the Defi project called SpiderDAO just like any other Defi projects in the market there's nothing new about it. by the way, Ethereum gas fees were still high and I experience it when I send some token that was cost me $4 dollars yesterday so technically gas still expensive when you send an ERC20 token.