[moojd]

4 letters at #8,016,155: https://api.github.com/users/jmoo

[smcl]

I somehow ended up with #510,566 https://api.github.com/users/smcl but I don't think I was a particularly early adopter.

I joined two years after they started which is earlier than I realised. And apparently we're both relatively early adopters given that there's supposedly >100,000,000 users now.