I exaggerated slightly. Rob Pegaro doesn't go so far as to tell readers to remove the DRM, but he does raise the possibility. I found this in tomorrow's Washington Post Sunday Edition:
Q: I have some books and stories in .lit format. Is there a way to open the files to read them?
A: Microsoft seems to have forgotten this format, concocted back when it had ambitions of providing a standard for electronic book publishing. It still provides software downloads (http://microsoft.com/reader), but most haven't been updated in years.
If your .lit books aren't locked with "digital rights management" restrictions, use the free, open-source Calibre (http://calibre-ebook.com) to convert them to a more current, compatible format, such as ePub. If they are locked, you can try to "activate" a Windows computer to read them at http://das.microsoft.com/activate. Or you could use a conversion tool suggested in Microsoft Reader's Wikipedia entry, the free and open-source Convert LIT (http://convertlit.com).
Think about this incompatibility risk before you get too excited about some new e-book reader with a proprietary, DRM-addled format.
It's good advice (I would have said much the same), but removing DRM is illegal in the US.