I enjoy written posts and I enjoy audio podcasts and books. With the audio content I listen to them sped up so I can then listen to more.
I know I would enjoy the information in a lot of vlogs if they were available in a format that i can easily control the rate at which they are consumed. Subtitles are definitively great addition that can help the consumer of information presented.

I know I scroll past a lot of steemit content because it just a link to dtube but would love to read the transcript.

There probably already apps that just play the audio portion of vlogs but i have been to lazy to find them.