Which coins should Bittrex remove next?

As a compliment to my "Which coins should we add next?" post, I'm posting the opposite.

There's a very vocal set of users who think that Bittrex should be removing markets ruthlessly and this post is for them. Which coins should we remove and why?

For those who need a refresher, here's a link to our guidelines on market removal: https://bittrex.zendesk.com/hc/en-us/articles/202583874-Bittrex-Market-Removal-Policy-Updated-06-21-16.