Long ago there was a magical time where there was no Newbie section, and no user limitations for new members. No one needed X Posts and X time logged to post elsewhere, and all was wonderful. Except the literal thousands and thousands of spam bots and advertisers who would make 10,000 accounts and 100,000 posts in 10 minutes and advertise paypal and such all over the place, where it was hard to track and repair.

After that, the newbie system was added, so that before someone or some bot could cause havok to the rest of the boards, they would have to post in the newbie section, where the Newbie section moderators are ever vigilant looking for the likes of them. It is unpleasant for like 4 hours until you have full rights, and then after that the newbie restrictions are gone, and you are free to enjoy a less spammy forum.