Seen on the changelog for Paparazzi!, a clever OS X app for taking full-height screenshots of websites:
JPEG 2000 export (under Tiger). I have no idea who’ll use this, but why not?
The moment you see that on a WordPress changelog message, it’ll be time to jump ship (or rather, “fork ship”). The question answers itself: because there is no obvious benefit, and there are several hidden costs.
Mark on WordPress 
They could always make it an option … 🙂
Doh, trust me to use a test account when commenting!
What’s the hidden cost, other than another menu item in a popup, of adding the option of saving as JPEG 2000?
Changes to other code could break it. It’s a support and maintenance burden.
You can never get rid of it, because there be that vocal 1% minority that’ll make your life hell if you try.
I’m a fan of the Firefox ScreenGrab extension for that kind of thing. http://addons.mozilla.org/firefox/1146/
Well, if it’s hidden cost to *me* we’re talking about, I’ll take it (since it was about 5 minutes to do).
Not that it’s *really* important, but I thought about it some more, and I’m now seeking input from my users. I’m excitable. 🙂