When you post a FPP to the Blue, your links are automatically run through some sort of search function to see if they have been posted before. This might be, if not too site-intensive, a useful thing for comments as well, so that people don't find themselves posting the same links, with different flavor text. [more inside]
Is there any way to make boldface/italics/links easier when posting comments from an iPhone? [more inside]
To people who have done this; why did you create Front Page Post(s) on MetaFilter? The motivations are interesting in themselves, and may also provide positive reasons for people to cross the rubicon from lurker to poster. [more inside]
After each post, where it says "x comments (x new)," how about having the word "new" link to an anchor of the first new comment on that link's comments page?