I tend to notice more when the opposite happens-- when somebody gets on the thread and argues every point made against their original post. It feels like they

I tend to notice more when the opposite happens-- when somebody gets on the thread and argues every point made against their original post. It feels like they didn't come to learn, but to convince the rabble that they're right. By contrast, it's nice to think that a silent OP is reading and trying to learn from the discussion, either modifying their ideas, or thinking about how to better communicate their ideas in the future.