Maybe I'm just being a stickly-sticklerson, but I like to make sure that if someone views the code on my site (namely myself or any other curious party) that all of it is properly indented and spaced out and line fed in the places that I can control it.
That being said, WordPress is another opensource application that falls victim to different mindsets working on different areas resulting in inconsistent display of HTML and CSS.
Lets just say, that someone was to go through and clean up all the tabs and new line feeds to spit out near perfect code... How does this someone go about suggesting/updating the existing template files to include these changes so that he/she wouldn't need to re-edit 6 template files everytime there is a new WordPress version? :) :)