My understanding of it is that its the software that federated services use to communicate with each other. Now, I don’t know if i’m even right so take that with a grain of salt, i’m sure eventually someone 1 level higher than me on the techie tier list will give a more thorough answer.
CNY has felt pretty hostile since the 2016 election. We have so many trump flags, “dont tread on me” flags, and confederate flags that if you saw a picture you’d assume you were in florida. Don’t even get me started on bumper stickers.