Send an approved answer to a public question after checking that it has not already received a reply.
Answer approved product questions and surface user posts needing a person.
Common questions in your Twitter mentions get answers from wording you approve. Your community manager gets an email with links to replies and posts needing review.
Reply to unanswered product questions with approved forum answers.
Matching questions get answers in your public help forum, and your community lead sees what needs a personal reply.