Designing a consistent language is *very* hard

[Guillaume Chatelet]

Sorry for the noise but I think a few language designer out there 
might like this one :
http://me.veekun.com/blog/2012/04/09/php-a-fractal-of-bad-design/
I think Walter and Andrei will smile ( or cry ) reading it.
It's no trolling here, I do think this post is very valuable and 
relevant from a language design perspective.