OK, there was an earlier (incorrect) comment in a thread that said it was included, but I traced back to a source, and it says Github is exempt. Phew!
Comment on MegaThread: Under 16 lockout/verification/ID required
Zagorath@aussie.zone 4 days agoLinkedIn has been specifically mentioned as exempt. I can only assume GitHub would be the same.
StackExchange might be a more interesting case though. And the broader StackOverflow network.
No1@aussie.zone 4 days ago
melbaboutown@aussie.zone 4 days ago
GitHub was being considered but is not currently on the list. Currently is doing a lot of heavy lifting.