Final projects: oauth2 or email signup?

I’ve noticed fCC has changed to email signup from previously using oauth2.

Is there some particular reason to favor one over the other?

Thanks.

You can use whichever you want for your own projects, though.

Thanks for the link.

The email service mentioned is now a paid add-on to Mail Chimp. So it seems unless you have access to a mail server via an API or directly, this approach will cost you.

You could use Google sheets API to store email sign ups instead.

I might try out this:

I’m used to having my own mail server, but I grew weary of maintaining it ages ago and moved to Gmail full time.