To tack on some more folks well-known in the outside world (some of these signed up last year and aren't active now):

- Michael W. Lucas, author: https://bsd.network/@mwlucas

- Amanda Rousseau, malware researcher: https://mastodon.social/@malwareunicorn

- Brendan Eich, creator of Javascript: https://mastodon.social/@BrendanEich

- John Scalzi, author: https://mastodon.social/@scalzi

- Jenn Schiffer, artist and dev at Glitch: https://toot.cafe/@jenn