It does depend how we are defining what matters. By your definition very few things matter. As a location for discourse it matters in how people related to said discourse in that votes can help push or diminish narratives and craft a location that is or is not an echo chamber. We’re all aware what people see shapes their views and their views shape their actions and their actions shape the world. So I’m not sure I agree that the culture of a platform, the content that is pushed doesn’t matter.