>If anything, a dissenting opinion (e.g. one in favor of Trump or the NSA) could add something new to the conversation but it would get down voted to hell and get ugly pretty fast.
I'll take the bait.
About a little of a year ago, when I worked in a lab, some of my colleagues routinely laughed and mocked Trump and boasted how he had no chance in hell (as well as fueling fire with continued patronage of sites and news that gave them more of the same "entertainment" [in their words]), and no amount of me pointing out to them the environment that enabled a such a persona to exist/rise to fame/power should be the topic of conversation rather than on the team $x circus ring leader de jour.
From where I stand, the problem with a ban on political discussion isn't really the content of it, just the intellectual naivety that one can shield themselves political discussion while ignoring all the not so hidden influences of such on ones culture, thought processes, and etc is laughable will only end in rude awakenings, because in reality such a ban can only be superficial, and never really cut to the heart of such issues that underpin political discussion.
Like another commentator said: "Talk is cheap and political discussion is especially cheap" and I'd add that superficial bans to hide or sideline political discussion, are can be incredibly expensive (filter bubbles, walled gardens, deep packet inspections, paid "moderators", "cultural fit" selectors) in the search of temporarily being in control, yet ultimately futile.