Why this is not traded on POloniex or Kraken. Only 2 exchanges?
because poloniex is heavily invested in ETH and manipulating its price. ByteBall is the Ethereum destroyer. You do the math.
Don't understand why you are comparing it to Eth. Eth is a token and smart contract platform. Does ByteBall do those things?
Yes, actually. You can issue tokens on Byteball, and smart contracts (not really smart, but lets say conditional contracts).