You are right in one side ( similar topics must be deleted) but I don't agree with you about the other side i e if newbie members are prohibited to post out "beginner section", then how will they get upper rank ?
The unique solution is to delete repeated threads , I think it's sufficient measure .
Why am I not surprised you misunderstood what OP suggested?
The suggestion was that newbies wouldn't be allowed to start new threads,
outside of beginners and help. They'd be able to post all they want in that section.
Does that make it clear? That way mods wouldn't have to work overtime
trying to clean up noob messes.