Although it does tend to make sense to establish some level of restrictions to prohibit abuse I belive that the appropriate measure should be inacted. Perhaps I am incorrect but I get the impression that required posts to groom a new user for more privilages are not nessesarly reviewed for additive content. If this is turely the case then how does this deter someone from hitting the quota through random giberish?
I would think that content would need to be reviewd to ensure the validity of the new user if this method is to be in place. However, the other suggestion of opening an option to placing BTC down would ensure the person has something they really want other to read. This would support the form operator and reduce overhead of validating users that choose this path.
~SilverStorm