While migrating from smf to discourse we couldn’t migrate passwords so every user right now has a pseudo-random password. Noone knows them, they were not stored anywhere.
Please change your password right after activating your account. You can do that by going to your Profile and use the function to send you an email for a password reset.
This is also true for users that were previously registered on discourse as well. We purged users and migrated them all from smf so usernames will be whatever they were on our old forum.
We’re also migrating most of the threads from smf to discourse so please excuse any emails you might be getting about that.