Never heard of this token before, i bet its new and since its from twitter please be careful, many projects on twitter are fake, if you want more research to be carried out on this project pls drop link to website which i still doubt if it has one
Yes, indeed, I don't see a site for this FLEx token. On Twitter, there is a website for registration with a referral link. If this is an official airdrop, why do I need this referral link? Probably the OP itself promotes this link. And as DaMut has already written, he participated in this program and received nothing:
https://bitcointalk.org/index.php?topic=5220132.msg53682995#msg53682995