I used to be a big fan of 'strict send, lenient accept', but looking at systems built on it -- (html, email), I think being lenient around format deviation just

I used to be a big fan of 'strict send, lenient accept', but looking at systems built on it -- (html, email), I think being lenient around format deviation just turns everything into a big mess. Granted those are two of the most successful technologies ever, so perhaps it was the right call =).