I had exactly the same experience. And I have been checking my spam folder for 24 hours – no email from SixFab. Also note a second issue – I’m able to post this comment just by entering any made-up email address in the register UI. No verification or password needed. That seems like it would lead to a lot of problems in the future. Please look into and fix both issues.
I have a different account problem: I received my password email but my username on the forum seems to have been automatically set from my registration email address (and so is meaningless). Is there any way to choose or change it?