Meaning of “Hato(鳩)”
As an internet slang, “Hato(鳩)” means a person who conveys the comments or actions of streamers to another streamers in real time.
Basically, the meaning of “Hato(鳩)” is a pigeon, so as a slang, you should just imagine a carrier pigeon.
Example Conversation on livestream
A: I had an argument with C because of last streaming.
B: Oh, seriously?
A: Yes, so guys, any more hato(鳩) please.