If it were a product or merely a project, you would be correct. But, open source software has too many users who think they are owed free features as it is. What's more, there's a high possibility that people on this particular forum actually have the skills to implement a proper PR. Finally, their comment clearly wasn't meant as a dismissive counter request but rather as an invitation for mutual excitement, and even an admission that the criticism was correct, but would be better served on the Github repository.