For general web forums, I would personally like to see personal SSL certificates required to create an account. That would at least weed out people creating mu

For general web forums, I would personally like to see personal SSL certificates required to create an account. That would at least weed out people creating multiple accounts. As for cases where anonymity is required, there could be other information that balances out missing info on the certificate. For example one field would be how much they paid for the cert (assuming the CA has variable pricing). So someone could for example pay $20 for an anonymous certificate (just a certificate number and pseudonym, possibly an anonymous email), yet it would be cost prohibitive to get unlimited number of certs to create fake accounts. Also, along with personal SSL certs, it would be nice to have a system to keep track of a person's reputation score across multiple forums.