Maybe the necro rule could only be for new users who have not been on the forum for like six months because they are the ones mostly reviving ancient topics without a good reason. Older members are wiser and they usually have a good reason to revive some old topic. Now, many of the "damned" topics will be out of reach, and yet the religious groups will be doing bad stuff so those topics will always be actual, but now users won't be allowed to post in them.
teachings of the Bible are so muddled and self-contradictory that it was possible for Christians to happily burn heretics alive for five long centuries. It was even possible for the most venerated patriarchs of the Church, like St. Augustine and St. Thomas Aquinas, to conclude that heretics should be tortured (Augustine) or killed outright (Aquinas). Martin Luther and John Calvin advocated the wholesale murder of heretics, apostates, Jews, and witches. - Sam Harris, "Letter To A Christian Nation"