[schuke]

I think there are two kinds of users of Markdown. One is those who don't need or want WYSIWYG. The other still want WYSIWYG but don't want to shift+arrowing around or constantly leaving the keyboard to reach for the mouse. The number of Markdown editors with live preview probably says that the latter group is actually not small.

[shortformblog]

This is actually my take on things. I use Mou as a writer and I think the live preview thing helps me get an idea what the final result will be. Being able to set up the CSS based on a website is also useful for knowing how headlines will line up, for example.

[cabalamat]

I find Markdown best for writing in but looking at the processed output best for proofreading.

[filmgirlcw]

This. I've been making my living as a writer for ~7 years and have used Markdown as my dominant syntax for about 6.5 of those years. When I proofread, especially a long post, a preview is great.

Of course, for that, I usually just use Marked, but I'm never opposed to seeing more Markdown tools. Ever.