Because we've been wimps. :) If you don't care about IE8 or IE9 you can use [defer]. [async] is always fine, but less attractive. But srsly [defer] is equivale

Because we've been wimps. :) If you don't care about IE8 or IE9 you can use [defer]. [async] is always fine, but less attractive. But srsly [defer] is equivalent to [theresnodocumentwriteinhere].