It's nice to see pedantry validated, occasionally.
Still, this will invariably lead to a few arguments behind closed doors:
- "We should obviously standardize on single quotes, since they're shorter than double quotes and save more space!"
- "Our site serves up dozens of pageviews a day – let's spend the next week scrubbing our markup for consistency!"
- "If you're using mixed quotes in your markup, you're Doing It Wrong!"