Comment editing: Is it a pony in the works for some day or will it never ever happen? [more inside]
Metafilter city pages: How about creating a section on the site, or in the metafilter wiki, that is a guide to various cities across the world, using links to ask.mefi responses to give the information?
PonyFilter... Would it be possible to get a notification either as email (probably hard to do) or on the my comments page when an ask.mefi or metafilter post uses a certain tag. [more inside]
This might be far too much work, but would it be possible to have a thread display how many comments there have been since you last opened the thread instead of comments since you last reloaded the page?