The Zendesk system and their users (Pioneer included) have been the target of spam bot attacks, flooding the forums with garbage advertising. As a result, Zendesk has released some new tools and effective immediately, all new users will be placed into a moderation queue for new posts. Once a post is approved, the user will be whitelisted and all future posts will appear instantly without moderation.
We hope this helps with the spamming and improves your user experience. We appreciate your patience during post moderation.