Hi @Jack
The name of the forum software you are typing your questions into is “Discourse” so that is what he meant.
The event will take place as typed text here in the forum as a series of posts with questions and answers in a single discussion thread. There have been several others like this in the past and you can find them by searching for “ask me anything”. Here is a link to the one with the Particle CEO (warning some parts are meant to be humorous):