Everyone should think about the bigger picture. Saying "screw an exchange" will get nobody no-where. A coin needs volumes. I suggest a diplomatic route to find an acceptable middle ground while maintaining a Bittrex listing. There are many ways to skin a cat. The quickest way to ruin is to burn bridges as a burnt bridge cannot be repaired easily and cuts off one route to your destination and most of the time is only to your own detriment.
Well bittrex is behaving like they run the show? They take money for listing and make up the rules as they see fit. If the dev and the coin want to succeed they must prove the don't need bittrex.
Bittrex is a key player in the Crypto ecosystem whether you like it or not. In addition, in the absence of regulation, exhanges in cryptoland has to be seen as at least self regulating and also complying with certain rules eg KYC etc. as far as possible. A coin needs all the support it can get. Life is not fair and sometimes certain actions and requirements can pi$$ off people based on their point of view. Mature people learn to deal with life's curveballs, including actions from other players that you might not agree with based on a certain point of view. Sometimes one has to work with someone that you do not like or whom you do not agree with but working together is required to achieve an objective.
I still say to the dev team deal with it, find the middle way and manoeuvre in such a way as to comply with Bittrex rules and maintain the listing. It is not necessary to be hard headed as that will only lead to despair.