[thinking_cactus]

If that's as effective as comments suggest, then it seems indeed unmasking pseudonyms has only been a matter of effort for a while.

I still think people underestimate the power of even minor inconvenience. While you can't just click a button to reveal all pseudonyms of someone (e.g. you need to download some obscure tool or even perform statistical analysis yourself), I think this provides significant (and surprising?) protection for pseudonymous individuals, I'd say even (although to a reduced extent) for sophisticated threats like state-level actors. I hope LLMs continue to be unable to do so for the near future (I just tested and LLMs can't do it with a simple prompt).

Which is why I think privacy safeguards still work quite well even while being technically mostly bypassable.

So probably tools like this should be kept private if possible.