Since its launch in 2008, Stack Overflow has become a crucial source for development help. The company behind the site--also called Stack Overflow 1--boasts that 40 million developers visit Stack ...

Matt Wallaert says there are technical reasons why stack ranking is a flawed system. He argues that even if all the technical issues were fixed, it would still be a damaging review system.

A recent lawsuit against Uber says its stack ranking system for performance reviews unfairly and disproportionately hurts women. Microsoft and Goldman Sachs have faced similar legal challenges.

Microsoft's stack-ranking was former CEO Steve Ballmer's preferred employee review system, and was blamed for everything from poor employee morale to a system that "crippled Microsoft’s ability ...