I've had a few accounts banned from a few of the larger subreddits, then I got a general permaban for ban evasion. Among the things I was banned from big subreddits for:

1. Making even vaguely pro-Palestinian comments on r/worldnews

2. Commenting in r/politics, that if the SCOTUS ruled that the president had complete immunity and was effectively a dictator, he should drone strike Supreme Court justices until that power is taken away. (Actual news stories proposing this were allowed on r/politics. But the comments section had an idiotic zero-context zero-thought "no violence" policy. IMO, the only moral use of dictatorial powers is to force through changes stripping yourself of those dictatorial powers.)

3. Literally on January 6th, as a group of armed insurgents was actively trying to overthrow our government in a coup, asking why they weren't being met with automatic weapons fire. I have zero doubt that if BLM tried to storm the inauguration of a president Trump, they would be shot by the dozen. But right wing extremists were allowed to openly attempt a coup in broad daylight. (We later learned the reason this didn't happen is that the president had deliberately kept troops from being deployed to protect the capital building.)

My primary account on reddit had several hundred thousand comment karma on it. I've had accounts with 15 year histories on there. But the main subreddits have been completely taken over by either right wing radicals or pro-advertiser zero-thought censorship policies. I literally had my main account banned from r/politics for wondering why my nation's military wasn't defending the peaceful transfer of power from a group of armed revolutionaries.

Looking back, I think we would have been a lot better off if January 6th HAD resulted in scores of thugs being gunned down with machine guns. Instead, the people who planned it haven't been brought to justice and have been left to simply try again. And since then, in right wing circles, it's been recast as some noble peaceful protest. We would have been far better off if the leaders of that movement never made it off the capital grounds. If we've learned anything from history, it's when fascists try to seize power violently, you need to come down like the Hammer of God upon them. Giving them a slap on the wrist to appease them does not work, it just teaches them that you are weak, and that they should keep trying til they succeed. If a thousand of the countries most violent right wing extremists had instead never left capital grounds alive that day, I think today we would be in a far better place.

But...you can't post that kind of thing on r/politics without getting instantly permabanned. They censor any discussion of violence, even when it is entirely justified and legal in the defense of a nation and its democracy. It's been said that from time to time, the tree of liberty must be watered with the blood of tyrants. But on r/politics, the tree of liberty is doomed to wither, as discussing watering the tree with the blood of tyrants violates community guidelines and doesn't make advertisers happy.

Or, as a final example, I think there was a story on there once that was hyperbolically lamenting, "OMG, what happens if Trump raises a group of right wing militias to stage an armed revolution if they lose in 2024?" I replied truthfully and correctly. What do we do if any group of people tries to overthrow the government by force? We shoot them. We send in the most powerful military on Earth, we shoot them, and we put them in the ground. That is what you do with rebels. That is what any democracy needs to do if it wants people to respect the results of elections. When you try to overthrow a legitimately elected government, your life is now forfeit, and you will be met with unrelenting merciless force. That is how that scenario would actually go down in real life. Democracy is worth fighting for. And democracy is worth killing for. And I wasn't afraid to state this plain and obvious fact. That got one account permabanned from r/politics.

In short, I am not afraid of saying that under certain circumstances, it is entirely just and legal for violence, even extreme and lethal violence, to be used to protect a nation and its republic. But on a big subreddit like r/politics, you'll be permabanned for saying it's OK to shoot people trying to violently overthrow the government.