Most people in the scene were warning people away from Bancor due to the large amount of money being raised. Generally large raises will result in a massive fall regardless of the teams performance short term.
Also it was never clear how their token fit into the future of the CryptoCurrency ecosystem.
It always seemed like an ICO-token without a purpose, looking to invent one.
Thing is most of these dapp ideas would gain a larger network effect and be more efficient just by using ETH.