Interestingly, if you look at the fees charged by Binance on all other nodes, you’ll see that their outgoing fees are almost zero. With such low fees, it still turns out that all the liquidity flows from me, for example, to them at Binance, and hardly comes back. And if it does, it quickly flows right back to Binance. However, it seems that Binance is becoming the perfect routing node for third-party nodes. It’s advantageous to connect to Binance in order to send payments elsewhere, since the outgoing fees from the Binance node to all channels are zero. (But it should be noted that due to whitelists, Binance has a very limited number of nodes that can open a channel to them.) Thus, it seems that Binance is signaling to all other nodes that they want to offload liquidity in their channels and are willing to send payments further for no fee. Yet, this still isn’t happening. Apparently, all the channels on Binance’s side are filled with liquidity that’s accumulating with them.
In other words, to sum it up, Binance is a huge vacuum cleaner for Lightning Network liquidity among all the Lightning nodes I know of.