I'm going to have to side with spacemanaki here.

My biggest focus in using vim was to get it out of the way so that I could focus on the Haskell. I wanted the environment (editor, compiler, window manager, test runner, etc) to be as transparent as possible. This is not, in point of fact, a series of vim tutorial videos.

I will make a video that explains my dev environment as a supplement, however.

I'd be happy to answer any vim questions in the comments (github issues, which I will hopefully figure out how to embed in the site eventually), and I do like the idea of adding call out boxes (no need to use subtitles, they can go on the video itself) to highlight interesting vim trickery.