Cryptopayment is the wiki's automated anti-spam protection mechanism. A small one-time Bitcoin payment is required before a user is allowed to edit or create pages. While the payment is deliberately trivially small for a normal user, it presents a barrier to a mass-spammer. Funds sent to this wiki will be used to keep the wiki online (cost of domain name and hosting), and remaining funds will be used to support Bitcoin development.
See BitcoinPayment for more info.