I know a couple of blogging coder friends, and they seem to have ditched the built-in code tags and use their own plugins, using the WordPress software and their own hosts. I don’t have that option right now, though.
The major disadvantage of the built-in code tag is that tabs and multiple spaces all get converted to one space, causing beautiful code to become unreadable and ugly.
I’d like to humbly suggest that multiple spaces are treated as multiple spaces and that a tabsize option be added to the code tag? I.e. <code tabsize=8>my code</code>