There seems to be a 5 comment limit, hence this new post. This is getting wearying, Russell. It's NOT about whether HSTS should or shouldn't be disabled, or why. It's about Apple saw fit to include it in Safari by default, and with no option to disable it, and while some users may not value it, it's just plain NOT YOUR PREROGATIVE to disable it or, for that matter, any security feature unilaterally with neither an upfront warning nor an included means for those who do value it to re-enable it. Bottom line! You can rationalize it, but you can't justify it.