It is 25$ worth not 40$ worth.
But in return, they are asking for personal information and a kyc. 25$ worth your kyc is something debatable.
Basically, misleading information is everything I've read on this day, I saw that airdrop last january and think it was very hard to accomplish though, I believe that blockchain will going to really provide the compensation, I think they should better decrease the difficulty in the verification process.