Its not a matter of being hard to remove. It can be the easiest thing in the world to do. But I would still have to keep doing whatever action is necessary to remove the bar. Over and over and over for every link. Plus the X is on the wrong side of the screen for me — Mac's have the Close/Maximize(ish)/Minimie buttons on the left hand side of the window, not right hand side like on Windows.

Reddit's bar is not on by default. Digg's is. This is a big difference. Having the frame and not simply redirecting means I can't see exactly what the pages URL is, it makes bookmarking, sorting and tagging that much harder. And site-specific scripts break.

The point is, it doesn't do anything to help enhance my browsing session. Being able to read comments on Digg is not a plus as far as I'm concerned. Being able to give a company that makes a website I don't use (or particularly like) my browsing habits is not something I have a huge desire to do. Besides, it doesn't put comments directly on the page. I still have to click through to Digg to read them.

Oh, and http://skitch.com/zadr/bms2t/not-useful <-- Seems to keep happening. Very difficult to read content if I want to do any scrolling at all.

exactly and it is useful. I think the only problem with the diggbar is that its on by default.