The user interface of WordPress on the Kindle is much nicer than the interface on a desktop pc. Everything you need is right at your fingertips on the Kindle. On the desktop version, you have to choose a “type” of post, it’s a hassle to add a password, and the editing screen always switches to html text instead of visual. I find myself not blogging as much as I used to for this exact reason.
I don’t like it when things become more difficult or a hassle, I tend to ignore them and move on.