Agreed. Most people are passionate about their strongly-held beliefs, be they political, moral, what have you. As a result, it's just too easy to get into a heated argument when confrontational things are just thrown out there, because one tends to be a bit protective of his own position. That's what got me off Facebook years ago, and keeps me off any other social media - the fighting and judgmental comments and general BS. This right here is my only social media today.
While politics do affect virtually every part of our lives, and perhaps not in a good way, it is wise to have a rule against it on this forum. The intent, I believe, is not so much to eliminate every single political comment (because you can't ban everyone), but to keep the ugliness off the forum.