This is not how it works, (unless of course you're pretending and collecting all these 'auxiliary data' on purpose) and even if it was, there's still plenty of non-PII data around
It would be really interesting to raise a human only on non-PII data and see exactly how screwed up and weird they'd be.
The Golem-Class model behaves in a 'humanlike' manner because it's trained on actual real data like we'd experience in the world. What you're suggesting is some insane psychology test that we'd never allow to happen to a human.
It hasn't been long that someone applied a basic, cosine similarity to HN comments to find alternate accounts. It worked quite well afaik https://news.ycombinator.com/item?id=33755016
If you're worried about being identified from alt-accounts you're much more likely to be tracked via reuse of emails or some other information that you have slipped (see multitude of cases)
Simple text is not PII, laws are not interpreted like technical discussions are https://xkcd.com/1494/
