It is obvious that reddit's MO is to pretend they are a small bunch of cool people running a little website.
I won't dispute that. A lot of companies do that. Even with the new hires they're still not a huge company though.
From wikipedia:
According to Google Ad Planner's estimate, as of May 2013, the median Reddit user is male (59%), 18–29 years of age, and is connecting from the United States (68%). Pewinternet.org has stated that 6% of all American adult Internet users have used Reddit before.[88]
I mean overthinking in the sense that you're really looking hard for something that's just not there. I'd happily tell you if you were right - a secret like that would be bad for us. But it's not true and if it were it would have leaked by now after 2000+ Victoria AMAs.
What's the more likely explanation? Victoria and reddit don't charge for AMA content OR that they've somehow kept this elaborate secret involving thousands of players from multiple organizations and everyone has kept their mouth shut?