I think that there are many, many dangers from having anonymous posters on the Internet. Among the least of them is that there are many posters from other countries that post on US politics. In the last Presidential election perhaps as many as HALF of all posters were not Americans but were posting from a phone bank in India. In other cases we have the crazy people who are willing to tell us things like Las Vegas shooting never occurred or the earth is flat.
So I subscribe to the idea that EVERY posting anywhere on the Internet be accompanied by the real name of the poster and his true address. Do you want to post on American politics? That's fine but if you are identified as North Korean we know what sort of biases you have.
If you want to post that the Earth is flat your employer should be able to see that and assign your job duties in accordance to your intellectual achievements. If you are identified and continue to turn up on every single conspiracy debate everyone should be able to see who it is and soon know what their ideas and opinions are worth.