Should one remain anonymous in online content creation

It ultimately depends on what kinda content is being created.

If you’ve got something to say and you’re not comfortable saying it publicly, there’s a very good chance you shouldn’t be saying what you’re saying.

Not a perfect chance, mind you… there’s certainly something to be said for anonymous whistleblowing, and also for a true vox populi (where you’re saying something that truly needs to be said and which people in power will kill to suppress). There’s also room for pushing entirely new ideas into the public domain specifically to disclaim intellectual property rights to those ideas.

But, overall, odds are pretty good you probably shouldn’t be saying it if all you’re trying to do is avoid being held responsible for saying what you said.

I'm a huge believer that most people should keep their actual identity and their online identity/identities separate. I don't think that it's necessary to make sure that it's impossible to link the two, just that it would require someone to make a concerted effort to do so.

Having your online identity and your real-world identity the same opens you up to too much risk, and it also means that you'll be less likely to to communicate honestly online.

I might have gone through 7-9 aliases in 20 years. You can't connect the dots looking forward you only can connect them looking backwards. If you still like what you did on the net when the need arises to put it in a CV or profile you still can use and show what you did under the alias. If you don't use one everyone can look back even if you later find yourself in a situation were you don't align with the views of your former self. Ignorance is bliss.

having that somehow trace back to you in the physical world

I think most people should not do this. Society goes through cycles. Right now people are very divided and enraged by the social media rage machine. That rage machine has the potential to get exponentially more divisive with LLM's and it will be much easier to dox, trick, bait people with LLM's. Adding to this there are a plethora of unhealthy and unstable individuals that are always on the lookout for someone to direct their rage onto.

I can not think of any real benefit to everyone using a real identity. Well, not a benefit to the individual but rather a benefit to corporate capture, corporate tracking. This does not even begin to get into the issue of the collusion of corporations and governments working together to distract, divide, control narratives and so on. All of the big platforms have former cough cough government employees retained in highly influential positions that are totally not still in Signal/WhatsApp group chats with active government officials.

As others mentioned ones views and opinions can change or evolve. Setting ones words on the internet in stone is a mistake. The masses are not forgiving and few put themselves in other peoples shoes. Corporations will do anything to cover their image. This forces people to wear a mask throughout their life, not voice their opinions. Some like this idea as it gives them the perception of having control over others, perhaps to compensate for the lack of control they have in their own lives.