I feel like he's wrong lol.

His analogy is broken simply by touching a neon tube.  He claims the gas is radiating the light because it is heated to 5000K.  Simply touching a neon tube will tell you otherwise.  He's full of BS

Someone didn't pay attention in high school chemistry.🙄 Is that Quora? If so I'm not surprised one bit, that site is full of self-proclaimed "experts" that have no business spreading their opinions to people who are just trying to learn.

Yeah, this dudes full of it.