I think I know what you're saying, though maybe an example might help. But we're talking about comments on the Web here, not a scientific paper. Most of us can not be subject matter experts and must use inductive reasoning to get by in life. And often have to depend on other sources like articles from trusted sources or scientific papers we're not very equipped to vet to shape our understanding of the world.
Just saying maybe your expectations are too high for a public Web forum.