If WrongPlanet.net encourages robust discussions within the political realm by including a subforum for that exact function with others which are simply milder versions of the same thing, then Free Speech rules the day. If, after all that, certain WP members enjoy their own brand of Free Speech at the expense of others, I would suggest that, either: 1) WP reconsider its expansive policies and rules allowing such speech, or 2) WP members themselves learn to live with what was wrought. Otherwise, what is self evident is that some WP members will go too far (but within the confines of WP policies and rules) according to other WP members who wish not to read so much Free Speech.
Since I joined WP in the midst of the 2014 U.S. mid-term federal elections, this has been a problem among WP members. I see no resolution except to curtail every member's Free Speech, because most members can't restrain themselves to stay within the policies and rules, or come within a whisper of violating them.
Maybe this is another opportunity to share the idea of those users who can't keep their speech in check might want to start reading The Mighty online, a website similar to WP for individuals with autism and a variety of many other disabilities. But, then, The Mighty doesn't encourage comments as much.
Good luck choosing what kind of site WP should be.