I think it can be useful, if taken in the right context, and with a grain of salt. I think it can be harmful if people believe everything they read without evaluating the sources. I'm hesitant to call anyone "ignorant" but, let's say they were? There's a lot of misinformation out there that can really sway people in the wrong way if they aren't careful. Like any technology I think the internet should be used with caution, and eyes wide open.