All valid points. Thanks!
1. A good idea. I could summorize the main points made in the video in text underneath.
2. I think going through basic points are valuable too because they speak to non-techy users too.
3. I'm torn. Perhaps # is a better character for tags. Fortunately it's just a GUI thing as the @ is stripped before going into the database.
4. Good point. I'm just not sure yet where to fit in such a text without adding noise. Perhaps I'll make an FAQ page.