Forwarded to me by Sonic, I'd credit the source if I knew it, as it's pretty damn spot on:
If I was as much of a perfectionist as some here would have me be, I would never get out the door in the morning, I'd be so busy scrubbing the floors of my apartment until they sparkle and shaving every ten minutes and removing lint from my clothing with masking tape, and by the time I finished that I'd have to shave again and take out the trash because there was masking tape in the trash and re-scrub the floor because when I took the trash out I might have tracked in dust. And then I'd have to shave again.
I could go insane with the web page behind the discussion board. First I could make it 110% xhtml 1.1 + CSS. Heck, why not xhtml 2.0 just to be extra addictive-personality-disordered. Then I could neatly format all the html code so it's perfectly indented. But the html is generated by a script, and the script has to be indented correctly so that it's perfect too, and a correctly indented ASP script does not, by defintion, produce correctly indented HTML. So I could write a filter that takes the output of the ASP script and reindents it so that if anybody does a View Source they would see neatly indented HTML and think I have great attention to detail. Then I would start to obsess about all the wasted bandwidth caused by meaningless whitespace in the HTML file, and I'd go back and forth in circles between compressed HTML and nicely laid out HTML, pausing only to shave.
I could spend the rest of my life perfecting the HTML behind every page on all of our sites, or I could do something that might actually benefit someone.