Ok, so those metabonding rewards are from the new projects in the Elrond chain would require KYC, right?

There isn't any KYC to receive the metabonding rewards. Let me mention that the size of the rewards which people receive each week has been pretty small. Each participating project gives about 10% of its tokens over the course of 2 years. 5% for EGLD stakers, and 5% for LKMEX in a special metabonding pool. There will likely eventually be hundreds of participating projects (with equal number of different tokens), and some will likely appreciate a lot, so metabonding will likely get better and better. Paws (an admin in here) posted where a metabonding calculator can be found. https://t.me/ElrondNetwork/960323