[Velocd]

There are some forums out there where a subscription service could bring in loads of money.

Any administer who owns a forum that has more than 20,000 members, with a good percentage of those being active users, could benefit from a subscription service.

Such as sitepointforums.com. It's such a phenomenally resourceful site that, even if they started charging $5/month to use the site, I'd probably still give in. Although their reputation overall would go down some. (any site with a subscription service will initially go down in reputation, because they automatically become bias to those with money)

With any large forum comes people who are addicted posting, as a hobby to their social life. The problem of subscription services only comes in with competition, because if another forum of equal size and interest exists, people might migrate in swarms.

If you ever need to set up a subscription service, slip a message my way, because I have experience with Paypal IPN, etc.