This is a silly post. As others have said, there's no problem making "most elements of the set P have property Q", even when the set P is very large or infinite. "Most real numbers are not integers. In fact, almost all real numbers are not integers."
The problem with making pronouncements about "most bloggers" or "most youtube videos" is that we just don't know enough about those sets. They're large and new and rapidly-changing, and although many of us have experience with a large number of blogs or youtube videos, our experience is strongly biased towards the ones we find interesting, so we don't know much about the averages.
The problem with making pronouncements about "most bloggers" or "most youtube videos" is that we just don't know enough about those sets. They're large and new and rapidly-changing, and although many of us have experience with a large number of blogs or youtube videos, our experience is strongly biased towards the ones we find interesting, so we don't know much about the averages.