Not op but it is mentioned in the Show HN blurb above:
> Just note an email address is required to register for the course - this is a limitation of the platform I'm using to host the course. Sorry about that!
Crap. My habit of skimming strikes again
That doesn't quite seem like an answer. Can I put in a fake address? If I put in a real address, will the platform decide to spam me?
Like, can I use https://temp-mail.org/en/ or will I need the email to access the material at a future date?
Just put in ANY valid email. They don't even ask you to confirm it before starting the course.
I generally use https://www.yopmail.com emails, works fine.