Until people stop using PHP I welcome detailed critiques of the language. There are still enough PHP apologists out there that we can use all the ammunition we can get.
2. It's symptomatic of a general "good enough" mentality that makes software development much more difficult than it needs to be.
3. It breeds bad habits in novice developers that are likely to be my colleagues one day.
4. It steals mindshare and time that might much better be spent improving better alternatives.
5. It provides LAMP detractors with ammunition to shoot at the entire open source web stack.
6. I may one day have a half-assed PHP mess dumped in my lap to clean up.