So my question is simple:
Did there used to be a forum rule against discussing religion and/or politics?
I don't think so. The strongest argument anyone has ever been able to make from the rules is that a conversation isn't music-related.
But then, there are lots of discussions on the forum that aren't music related. Talk of vacations, employment situations, health issues, local catastrophes, product recommendations, jokes, humorous stories, purchases, movies, TV shows have all been sighted here, but nobody complains... which leads me to believe that invoking the "not music related" rule is disingenuous to say the least.
When people selectively use the same rule they often ignore to stifle discussion of a topic they don't like, it is indeed about control, and about someone trying to impose his will on the forum.