Hmm, so weird stuff showing up on my Forum Profile page:
The highlighted part links to this page: https://us.forums.blizzard.com/en/wow/g/b-license-145
My name appears on that list:
Despite not having the beta on launcher or an email saying I am in it, I now have access to post in the Beta forums.
I guess it is just a false flagging that popped up due to having been in previous betas.