Subreddit moderators do have input. The admins wanted to make AskHistorians a default and the moderators, who are already work overtime to ensure the posted ans

Subreddit moderators do have input. The admins wanted to make AskHistorians a default and the moderators, who are already work overtime to ensure the posted answers are highly professional, said no. And some moderators have, I think, chosen to remove their subs as defaults.