Very interesting indeed. I think were initiated as private nodes (not announced), but somehow they got connected to a public node opening a public channel. If in their ln config have not indicated a public IP, only that local 127.0.0.1 is what was broadcast into the gossip.
Are kind of dead nodes.
Binance's node doesn't look dead to me mate. It's a feature, they just go unannounced and hence have a sort of a white-list approach to only tell you their details by opening a peer-connection to you (or by getting in touch).
This way you can gatekeep 100% who opens to you, avoiding the usual way of just upping your min-capacity
reply