The HawaiiThreads.com software allows you to format and enhance the text of your posts. You can either use the word-processor-like buttons that appear when you start a new post or reply, or special codes (or tags) as you type to format on the fly.

They allow you to bold text, underline text, italicize text... You can create numbred or bulleted lists, add hyperlinks to other sites, and do lots of other useful things.

Hands down, though, my favorite custom code is the "spoiler" tag. Finally, an elegant solution to the "don't give away the ending!" problem that vexes other discussion venues. If you want to talk about the surprise ending of a movie, or who won the Oscar before everyone in Hawaii or someone taping the show would want to know, just wrap the giveaway in "spoiler" tags and save them the anguish.

For example, if you figure someone hasn't seen The Crying Game, Citizen Kane or The Sixth Sense, you can hide the spoilers so only people who want to know the truth will see it, by clicking a little button like this:

She's a man! It's his sled! And he's dead!