My OS X screenshots with both cmd-shift-3 and cmd-shift-4 have always defaulted to PNG out of the box. I've been on board since Tiger and on two different machines.
Same here, and my screenshots have never been blurry, either. I have no idea where the author got the info that "by default the screen-shoot format is a made as a jpeg set to resolution 60".
yep. I would vote the main article down for being inaccurate if I could.
They used to default to PDFs. And it could have been jpegs before that, maybe back in 10.0, I don't know.
I really love Skitch for taking screenshots.
You can go from snapping a shot to having it on the web and pasting a URL to a field in like 5 seconds. Like such:
My guess? The guy took a full-screen screenshot, opened it up in Preview in Auto Size mode, and was surprised that it looked fuzzy when shrunk to fit on his display.
Oddly, the sample screenshot of the terminal session on that page is a GIF.