In my experience it's 99% of humanity, including myself. It's not just on Youtube. This is why the whole discussion of "ridiculing religion" entered into this thread in the first place because it's *not* just a handful of stupid people on Youtube who lash out in fear/anger/offense/whatever. Otherwise, this whole thread wouldn't even exist.
"Some stupid people on Youtube did something I don't like" immediately morphs into a response of "Youtube is stupid - the people on it, the company that runs it, the people who made the policy that allowed it to happen, etc. etc., all of it-stupid" How is that not a generalizing response coming from emotion?
To be clear this thread and it's content doesn't actually bother me, but it does suggest that a lot more than stupids on Youtube have this response. We all have it, and we have to constantly check it. If my reminder of it seems officious and irrelevant, you are free to ignore it.