SteelyDan - this is not challenging your assertion, though it may appear to be so. You could very well be right. My experience is that the GenDis mods are very exacting in what they close as OT. If it doesn't pertain to firearms, it's OT. Some posters do try to weasel in a thread by mentioning something about a firearm, but that is a very obvious attempt to keep their OT threads open.
Since you give a percentage of borderline closures, that means you probably did an informal survey of the threads. Can you give us some examples of closed threads that you feel were borderline? That would give us some food for thought.
(Love your music, by the way.