I have several personas that have made the rounds in the underground somewhere. It’s actually kind of interesting - I made up a persona back in 2016 or so and even six years later I’ll get calls for that “person”.

So while sometimes the information is legitimate - especially if you’re not opted out of the major internet people search engines (ref optery which is a yc graduate company) - but you can also “poison the well” enough to get your fake persona disseminated.