I was trying to log in with my old forum credentials, but it didn’t work. Maybe the old password was too short for the new forum.
Anyway I tried resetting the password - this didn’t work either, I got no confirmation email. Checked spam.
Signing up for a new account (this) using the same email account worked however. I got a confirmation email this time.
Just to let admins know, maybe there’s an issue with confirmation sending when resetting the pw.