Don't know if this something you'd even want to bother fixing, as it may seem kind of trivial to some people.

When writing a post with links embedded into the text, if you use "Preview Post," the links don't show up as underlined. It's not a huge deal, but it resulted in me going and underlining the linked texts, researching the problem by looking at other posts, figuring out it was the post preview function screwing up, and removing the underlines from my posts (though that wasn't really necessary...).

So if there's an easy fix for it, might be worth implementing.

Many thanks for your diligent maintenance of a large community.