I disagree with that, I have had expressed 'extreme' opinions in this forum but I kept it civil, positive, and all I got hit with was to lose some 'karma points', and even the comments 'slapping me' were positive and I learned from the dialogue.

I am not perfect, but who is?

I believe in this forum we value open mindness and a fair dialogue. I don't like agreeing with everyone on everything, that would make a very boring and unproductive forum.

Define "extreme". Try expressing ideas that are anti-egalitarian or anti-democratic and see how far you can go.

Lots of people are anti democratic. Democracy is pretty bad. Look at the state of the world. But there’s a difference between being anti-democratic and pushing a clearly even worse government design as if it has observably more merit.

For those you might need to define and defend your stance a bit more carefully. but is that really unfair?

No. I've never been banned for being incendiary and I use the comment section almost exclusively to criticize things, including this comment which I now feel compelled to disagree with given that my experience contradicts it.