It's pretty common to see a wall of text when you first enter a forum or message board. Usually, it's just a welcome message from the site's administrator or moderator. Sometimes, it's a list of rules and guidelines for using the site. In either case, it's important to read through the wall of text before posting anything. This will help you avoid breaking any rules and offending other users. It also helps to familiarize yourself with the overall tone and atmosphere of the site. Once you've done that, you can start posting away.