These forums have posting restrictions based on the level of the main class of whichever character you have tied to your forum account.

Posting Restrictions

For me, it’s showing your highest level character as “Sinfury Bloodstrife” with a main class of Pugilist that is Level 18. So your restrictions would fall under not being allowed to make new threads (with the exception of being about to on a few subforums, such as New Player Help), and being limited to 3 posts per day (and, by “day”, they mean rolling 24 hours).