He is probably suggesting that if someone is required to pay an evil fee, he/she shouldn't have to do it immediately after the registration. Instead, the payment should be delayed to a later date. But that would then mean that the admins would have to keep tags on who does what, and if they notice that a member who needs to pay the fee is trying to join a bounty/signature campaign or wants to sell something, he first has to pay the fee. What if that member never does any of that? He could then use the forum without having paid any fee. That system wouldn't work.