Proposal: If you've paid for a subscription, then you are not a random evil link-spammer, and should be exempt from the 15-posts requirement.
Sound reasonable, or not? Would that be feasible?
I will look into this.
The 15 post rule is programmed into the site so I am not sure how the whole upgrade thing affects it.
To be honest, it is rare for someone to come in and be a PM before completing 15 posts though.
But it will be raised.