I just ran PHPStorm's inspections on Magento's core code: http://imgur.com/RMxWEgR http://imgur.com/RMxWEgR Granted, the tool I used is opinionated and not all

I just ran PHPStorm's inspections on Magento's core code: http://imgur.com/RMxWEgR http://imgur.com/RMxWEgR Granted, the tool I used is opinionated and not all those items are red flags, but the sheer number of issues is impressive.