Want to edit the comments on your blog? There's a Greasemonkey Script that can help. Dunpanic's script is hosted at Userscripts.org & "adds a comment edit link beside the trash can icon in the comment view for the author." This, we like. I have yet to test it, but it certainly promises to add a significant & missing function....
...& oh, BTW, Choongyong's blog looks v. interesting too.
Update: Edited for accuracy in response to Dunpanic's comment. Thanks for the feedback, & sorry for the error!!