[nandreev]

Excellent points. A judgment call has to be made if there are two competing videos for the same topic, and around the same length. This sometimes happens, for very popular topics (e.g. HTML basics).

The plan is to have a feedback mechanism that will let the viewers decide if a video should stay or go.

Where possible, attention is called to the credentials of the instructor (much more important and impressive than the credentials of the curator). The first few minutes of the videos are usually enough to convince a viewer that it's a serious video intended to convey information.