Validation is exactly why 'these letters' can be useful and even necessary. Nobody cares if a lone developer complains, but if he find enough validation (throug

Validation is exactly why 'these letters' can be useful and even necessary. Nobody cares if a lone developer complains, but if he find enough validation (through letters or as others here say, filing a bug report), it very well might make a difference. I'm honestly curious what makes it sound immature though. Could you elaborate?