Is there some reason why Bittrex is ignoring this coin? They don't usually require an invitation from the dev to add a coin. They do it on their own accord. Something must be wrong that Polo and Bittrex are both not adding this coin after such a lengthy period of time in the markets.
Bittrex asked recently at Twitter if there are new coins to add
https://twitter.com/BittrexExchange/status/878289303779946497
so just suggest IOTA there
Poloniex seems to refuse popular decentralized coins (e.g. WAVES) strictly, because this could be the downfall for centralized exchanges in future. But I guess they nevertheless can't stop this trend. Fortunately. At the moment Poloniex demonstrate impressively that centralized exchanges are anything else than the future.
would be nice if everyone suggest to add at bittrex.