So for a couple of groups, access is indicated .. but for others there is no link or contact or information of any kind. If I have over 1000 domains how do I access that forum? Same if I buy domains at TDNAM?
Young Domainers - Join Details: Automatic based on your age if aged 13-20.
Large Portfolio Holders - Join Details: Contact NamePros with proof. We also do this manually sometimes by Whois records of confirmed account email addresses.
TDNAM Buyers Group - Inactive group but preserved for existing members of the group
Domain Registration Providers - Join Details: Contact NamePros if you're actively involved in the operation of a domain registration provider. We also do this sometimes when we add Company Representative badges.
We've also added more notes to the groups themselves thanks to your question.
The groups that are assigned badges are covered on the following page: