Just as relevant a point…
To be clear for the past five years I've done nothing but write OSS code (https://github.com/conartist6) while sharing pretty much all my engineering thoughts on a public Discord server (https://discord.gg/NfMNyYN6cX), so I'm not very worried at all that a person determined to find out would be unable to tell if I'm legit. You just can't fake 20,000 hours worth of public toil.
The ones who show real curiosity, those are the people I'll give my full attention to any day of the week.