Mostly, they just started disappearing. Mostly, they struck me as more obscure than thoughtful. One that went by the name goshisdead was impressive in many areas, but he seems long gone.
The way I see it, nobody on this site have taken away your right to hold an unpopular minority opinion, even if a majority dislike your, supposedly, reactive views.
It would help Matt to know that Whackeye (a.k.a. Hawkeye) obsessively hates Robert, and constantly rants about freedom of speech, specifically, that his is curtailed at a venue which had never censored him. He's been predicting dire consequences for this site literally for years--which is why some people also refer to him as Chicken Little.
Perhaps more subtle influence would be more effective.
I have unpopular views regarding veganism, but in my experience it takes a delicate touch not to trigger defensive/offensive postures in a potential audience.
If it hasn't already been mentioned, hit the ignore button. It's great for your blood pressure, particularly when you can avoid reading crap that is so sublimely ignorant it could make your head explode. So, when I find someone who is wasting my time, I hit ignore.