I have just installed the Disqus commenting system. All old comments are currently importing to the new system and will appear within 12-24 hours. You can start leaving new comments in the meantime.
Disqus has many advantages in the form of sorting and voting, features that are helpful in posts that get over 50 comments. You can still post anonymously without a user account, but you do need to provide a random email address.
As you try out the new system, share your thoughts below so that in one month I can decide if it’s worth keeping or reverting back to the old system. Let me know if you notice any bugs.