Today I learned that Thunderbolt is the name of the interface/protocol, not the connector.
Some of us do work in actual offices and not in some coffee shops down the street. ;)
Whoah, what's up with that? Not sure why you're inferring this coffee shop story or why you're doing this smug posturing thing but it's pretty obnoxious.
USB-C adds additional pins for alt-mode as well as a higher power delivery allowance, but the USB data protocol part of it is the same as any other type of port of the same spec.