[I personally like the idea, masha'Allah. I would not want to be in a video but I do watch lectures where the speaker is videotaped however, those who do not want to show in videos could make videos without videotaping - could be the reading of a script (audio) alongside relevant slides (visual) supplemented by written words (textual). There are SF members who make these types of videos - no videotaping; videotaping without showing the person; and videotaping with the person giving a talk.]