This only applies to members who are posting unnecessary comments such as 'thanks' or 'great' to build up their post count.
You need 15 quality posts before you can send a PM (quality posts are good methods, good questions, or good answers or comments)
Once you have 50 quality posts you become a Registered Member
After you have 100 quality posts you can become a Jr VIP. Click here to become a Jr VIP.