Bittrex is showing this warning for the SWING/BTC trading pair:

"This market is in danger of de-listing due to low trade volume and lack of user interest. It may be removed on Friday, December 18th 2015 unless the average daily trade volume for the last 7 days exceeds 0.2 BTC. If you are the developer of the coin and would like to keep it listed, please contact us at support@bittrex.com."

Dev, I hope you'll have time to contact them. Bittrex is an important exchange for SWING. Thanks.