The only explanation on their website was a nonspecific general one;
Why does the Poloniex team delist assets?
We delist assets as part of our mission to provide customers with the most innovative projects that fuel the industry and to ensure the assets meet the high standards customers deserve, which is why we created the Circle Asset Framework.
The Circle Asset Framework is a tool for prioritizing new crypto asset listings across our various products. We apply this framework to assess projects across a few key categories - fundamentals, technology, people, business model, and market dynamics. In addition, we also consider other factors such as new guidance from regulators. Http://www.poloniex.com
The only explanation on their website was a nonspecific general one;
The Circle Asset Framework is a tool for prioritizing new crypto asset listings across our various products. We apply this framework to assess projects across a few key categories - fundamentals, technology, people, business model, and market dynamics. In addition, we also consider other factors such as new guidance from regulators.
Http://www.poloniex.com