For those who wanted proof of:
BTC.TOP, Binance, OKEx, and Huobi pools have just started signaling that they are running BCHN node, along with Bitcoin.com and easy2mine pool who have been doing so for a while.
Go to https://cash.coin.dance/blocks and take a look. Move your cursor to the red block, the info will pop up.
PS: Binance, OKEx, and Huobi also own exchanges.