Twitter tried to do this with the verification checkmark.
In such a system, you can no longer be anonymous, and everything you post is tied to you. It's also incentivized that this is possible due to surveillance capitalism.
I think that this will turn the net into a much more corporate-like entity as you need to mind your image. Like imagine LinkedIn but for everything
> Like imagine LinkedIn but for everything
After reading this I think I'll read a Steven King book, which will be less horrifying.
You could have something that is more akin to "verified-human" rather than verified identity. Though that alone would not prevent actors from posting llm content from verified accounts. So then you could have an additional layer where an account can lose its "verified-human" status if it posts llm generated content without disclosing it as such.