Simplest way would probably be to take your computer with a warrant and see what forums you frequent and who you are logged in as. The cookies on it will provide your username and there's a good chance if you clicked the "Remember me" button, when they visit the website from your bookmarks that it will automatically log you in and give them full access to your account.
The pen is mightier than the sword. That adage has never been more true than it is now in the age of the internet. As such, of course "they" wouldn't want us exercising our right to bear pens anymore than they want us exercising our right to bear swords. In China they have censors that monitor and control your online speech. Here in America, we have moderators. It's the same thing-a hidden force acting to suppress thoughts, words, people, and groups. In China, if you are found to be thinking/speaking a little too freely, the government will oppress you. In America, if you are found to be speaking/thinking a little to freely, the government will oppress you, just not as openly and directly. And then, should you ever find yourself in the government's court for having exercised your right to self defense, "they" will use your right to speak freely, not as a dialectic tool to ascertain the truth of the case but as an eristic weapon to win the case and thereby destroy you. And while I have no problem with murderers going to prison, it has become clear lately that the courts have become excessively biased and politicized and turned into an engine of oppression to suppress the basic civil rights enshrined in our constitution through a process referred to as "lawfare".
If you are careful about choosing a screen name and about how you link various accounts, intentionally or otherwise, and about what information you share online, you can have privacy in the sense that most people won't know who you are.
I don't even have a problem with that. Criminals and especially murderers should be brought to justice and, within the constraints of the constitution, law enforcement should be empowered to gather evidence that would bring them to justice. My issue is that this technology can be and has been used to suppress liberty. the only truly free speech is truly anonymous speech and TPTB are going to great lengths to ensure that anonymous speech is impossible. Anonymous speech is the bedrock of free speech. The federalist papers were anonymously penned by Alexander Hamilton, James Madison, and John Jay under the name "Publius". Benjamin Franklin wrote anonymously as Silence Dogood. And the supreme court has repeatedly upheld anonymous speech as being a protected pillar of free speech and yet, here we are, unable to speak anonymously out of fear of being doxed or having our words used against us for who knows what at some point in the future opr just because the government has the ability to identify us. So I don't know, maybe these tools should be taken away from law enforcement and any other agent of the government that could use it to suppress first amendment rights and, by extension, every other right including the right to keep and bear arms. Yeah, I think I'd be OK with that actually.
