How it is possible that Byteball is on Bittrex but not IOTA ?
The  IOTA developers have said it is difficult. But you can see Bittrex listed Byteball without problems.

For sure, the IOTA devs have an exclusive agreement with Bitfinex. And if I see what Bitfinex do with their Tether-shit it is unbelievable how IOTA devs trust Bitfinex. For sure something is wrong between Bitfinex and IOTA and the whole IOTA-Exchange thing.