My time in the Ruby Community taught me about test driven development and a reliance on process that produced functioning and robust software. Things like conti

My time in the Ruby Community taught me about test driven development and a reliance on process that produced functioning and robust software. Things like continuous integration and careful specification through tests were promoted. If anything my most common problem with Ruby Community was too many different test suites to pick from. It seemed like there was a new one every week. That said it was an non-typechecked interpreted scripting language and updates between versions could break things but if you had a process and a test suite those weren't practical issues. What are some possible reasons that are experiencing the community differed so wildly?