Vauxchen pretty much covers it.
There are no higher privliges that come with a higher postcount therefore it is just as rewarding as rep, of which the giver can atleast apply a comment or compliment, whereas postcount offers nothing.
Whereas in regards to ModTraining we already have enough staff to handle the amount of members whom regularly post, any more would be over kill.
Undoubtedly at somepoint the forum will need more, but as was more recently, staff postions are only concidered when there is one available
If you want to have a posting competition fire it up in Bloody Palace, provided its a game that follows rules (that do no infringe on the forums ones) go for it!