I'm a long-time user of free/open source software, and write various things for both fun and profit. I don't take myself all that seriously and I do all of my own stunts.
You can find me at these fine establishments on the web: Open Source Musings, The Monday Kickoff, Weekly Musings. and The Plain Text Project.
Authored Comments
It's whatever works for you.
I don't use Wordgrinder in my daily writing. But I know a half dozen or so people who do (two of them pointed it out to me last year when I was writing that article you mentioned). Some use it to hammer out their first drafts or all drafts. Others adopted Wordgrinder for its simplicity and as a distraction-free tool.