People chatting about random topics prompted by the link is the whole point of a link aggregation discussion site. The discussion is not intended to precisely meet the needs of the person who created or submitted the link, and it’s silly to dismiss it because it predictably doesn’t.

If someone wants e.g. concrete technical feedback about a new specialized tool that takes hundreds of hours of preparation to appreciate, they should find a forum consisting exclusively of people with enough background to give meaningful feedback, and then describe exactly what kind of feedback they are looking for.