casual criticisms on hackernews are still more valuable for drawing attention to your project than in depth comment chains from renowned experts on [repository manager of choice].especially since those comment chains are undiscoverable unless you're already interested in the project(or the chain gets linked on hackernews)

plus this may just be me as a non (designing a tool language for a project) dunce speaking but reading a critique of a language/framework that i haven't thought of makes me want to try out the language and see how that shortcoming affects the way i work. it's the reason i tried out Go and Elm and Vue.js