as a user never asked for constant review of threads for rule violations

You might not, but us very satisfied users of the shining beacon of magnificience in reddit's cesspool, /r/AskHistorians, did and that was (is?) a model of the contribution to civilisation and human knowledge can be made in a well regulated space on the internet. But those very erudite and busy professionals and scientists moderating there will in all likelyhood throw in the towel and I am afraid anything that comes in its place in another medium would stuggle to reach the same level.