Comment by epistasis

Presumably: AI automates the person-to-pseudonym connection, the searching of small bits of biographical data that accounts leak over long periods of time, across all accounts over the internet. Dedicated sleuths could do this in the past, but now it's fast and easy and at the touch of a button.

So people that are at risk, say, by having a government job, or doing publicly funded research that produces science for the common good, can now be automatically identified, blacklisted, fired, etc. etc. etc. en masse. This would have taken too many person-hours to be worthwhile for a newly installed political manager at NSF or NIH. But that list is now an easy purchase from a government contractor, named after a nefarious communication device from an SF novel, and grants are currently being cancelled on far flimsier political grounds than that.