This is an early Bsky thread and very insightful three years later.
Tikkun Olamunist - ירמל גרױסDuring the first dotcom boom, there was a website called Jewhoo (after Yahoo) where you could type in someone's name and the website would tell you if they were Jewish. The tone was affectionate and celebratory of Jewish successes. Then the Nazis started using the website, and they shut it down.