Great work. I'd think about having yrecombinator.org/user/#### pages.

People can link to those from their profiles.

I initially started thinking about "author here" searches here: https://news.ycombinator.com/item?id=49317157 whereby people could clearly see items where an author had shown up. The complimentary idea was to inform a user if something they'd written or developed had appeared on the site (as a notification.) This is in the vein of Google alerts, which has been running since 2003. https://share.gemini.google/kZJ6i9bfZwZZ