[IggleSniggle]

I used it when I was a teacher to markup my students‘ videos when they submitted them to YouTube or Vimeo.

Part of the assignments were to produce content for a publicly viewable medium, and it was the easiest way to to get a certain consistency between submissions when I wanted my students to be focused on content, not files.

I also needed to have my own copy so that I had a provable record of the students work even if they decided to later take their assignments down.