RE: Can we guess why Byteball will give you free money? This is why!
You don't need to guess, when it says on their website: "Mass adoption requires wide distribution, that's why 99% of all bytes and blackbytes are to be distributed for free.".
Over half is already distributed and not only with Steem attestation.
Also, there is no mining in Byteball, so it doesn't have same distribution methods like Bitcoin or Ethereum have.