If you’re not familiar with reddit, it’s a … come to think of it, a description eludes me. It’s a social site where you can link URLs and discuss them, but there’s a lot more to it.
Anyway a feature that organically came out of it is “IamA AMA” which is a shortened version of “I am a …, ask me anything” e.g. “I am a fisherman that uses trot lines, ask me anything”.
Lots of “celebrities” have been AMA’d. Gary Johnson already did one last year as a Republican candidate and did one yesterday as a Libertarian. Here’s a summary of that. The AMA itself with all the various comments and responses can be bewildering to navigate and comprehend.