Just out of curiosity, did you try searching for an answer to your question? Here: https://hn.algolia.com/?query=downvote%20threshold&sort=byDate&prefix&page=

Just out of curiosity, did you try searching for an answer to your question? Here: https://hn.algolia.com/?query=downvote%20threshold&sort=byDate&prefix&page=0&dateRange=all&type=story https://hn.algolia.com/?query=downvote%20threshold&sort=byDa... You'll find lots of information about thresholds, what things can and can't be downvoted, and the email address of the mods.