He does not need to be able to point to an extant, better alternative for his criticisms to be "credible." BTW, I can't believe you're implying that his post i

He does not need to be able to point to an extant, better alternative for his criticisms to be "credible." BTW, I can't believe you're implying that his post is not credible. The practical outcome of your demand for a solution is to shut down legitimate criticism.