I see this requested a lot,
the problem is each post will be a different transaction, or you can have an account that it deducts from, or just a subscription, so i have seen a mod in here that may be able to do that it lets you buy money on the board and spend it in the board for stuff
let me look for it
--------------- Added [DATE]1297352620[/DATE] at [TIME]1297352620[/TIME] ---------------
https://vborg.vbsupport.ru/showthread.php?t=232676 ok here it is, the only other thing I can think of is to edit the post submit link to redirect to a paypal option that is setup to charge 3 bucks then after purchase it would send them back to post