Are you sure you subscribed to the mail list? The words you use, e.g. "created a new acc" is not the terminology I would expect you to use if you are using the Nabble service as intended.
What links did you click? On what page? (Give links) Have you responded as required to the emails you should have received? Have you done everything that that list owners expect of you?
Provide a link to the list and "the Jenkins issue site" and quote exactly what you did and what you asked there, then we may be able to help, or at least advise how to phrase your queries to the list owner.
Volunteer Helper - but recommending that users move off the platform!
Once the admin for GregHelp now deleted.