sorry, it was me playing around.
They are only rankings based on the number of posts a member has made. The restrict nothing.
The ranks I came up with on the fly are:
Intern
Colleague
Associate
Junior Partner
Senior Partner
Gynoid Master
The more posts you make, the higher the rank.
If anyone has any better suggestions please by all means make them.
Hope that answers your question
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(No doubt I will get my wrists slapped again for playing with the board

)