Post limits... brought up jokingly, however, could be good

[Jurollo]

Would creating a limit of say, needing 5 posts to create your own post be wholly bad for the forum? Wouldn't this deter a lot of spammers from starting posts with there links in it, especially if the error msg was something along the lines of...
"You do not have access to creating posts yet" or something like that which didnt fully say why, i feel like this would cut down on the accounts made solely for spamming.
~Justin