Some members are buying post at really high rates which is not recoverable from the post itself.

I mean to say if you are buying a post above than 3 on this CPM you won't be able to earn that much revenue from it it will be most probably 0.50 which is not profitable 

One other thing is that the owner of the post itself is not able to purchase his own post at such high rates.

So with this CPM purchase price should be low

What you guys say?