Ok, there is the other side to this coin WITHOUT replacing PHP http://engineering.dailymotion.com/php-7-deployment-at-daily...
It does highlight an important issue with Hack though. Once you start to migrate to Hack, moving back to "pure PHP" is a pig.
You see, that's a hater's logic.
Every PHP's advantage or eviddence you've given, you are trying to dismiss or even twist, calling it a disadvantage - usual tricks for the internet discussion when you aren't interested to find the truth but just to keep pressing with your opinion.
Honestly, this kind of discussion is the only problem with PHP.
I enjoy the speed boosts of HHVM or PHP7 as much as anyone else, because I benefit from it, but yeah, I still hate the language.
May be your hate is entirely from the fact that you are forced to work with the tool you don't like.
You don't need to pity me. I don't have much to do with PHP any more. All new development is either by a static generator or Django, or whatever's required... I just also maintain a PHP server for a client with a load of Wordpress installs.
That's was my point about liking stories about PHP getting better. A performance boost means a free upgrade for no extra work. I like that. Doesn't mean I like PHP.