How about just agreeing as a community not to go there and locking anything that gets started on one of those topics?
Debating about religion and politics is banned in most workplaces for a reason. It creates barriers and divisions, rather than building community. Why should here be any different? As far as I can tell from posts he's made, Nifty wants us to build community and make new members feel safe and welcome. Reading a ton of threads where members argue with one another isn't the best way to make this place look safe and welcoming. Yes, most of the political threads start out nice, but they ALWAYS go downhill after the first few pages. Suggesting an automatic lock feature just shows that there is the assumption that these threads are going to be locked anyway, eventually. What a pain and a waste of server space.
There are plenty of other places to go on the internet where you can argue and campaign... Blogs are one example.
I'm also kind of getting tired of the little religious things that get slipped in to threads (I'm talking links and scripture quotes, NOT personal sigs, those are a personal identity thing and not part of the conversation!) other than threads specifically asking for prayer. I'm Christian, but I don't want to join someone else's denomination and I don't need to be preached to on a chicken board. Also, I don't feel the need to shove my religion on someone else that doesn't practice it (not all Christians are pushy).
This is, of course, just my personal opinion.