Poloniex has announced that it will be removing 23 trading pairs from its exchange due to low volume
Source: https://cointelegraph.com/news/crypto-exchange-poloniex-to-delist-23-trading-pairs-due-to-low-volume
Crypto Exchange Poloniex to Delist 23 Trading Pairs Due to Low Volume
August 15, 2019
CoinTelegraph