This is a great idea and your elevator pitch on hacker news is brilliant, except you should have said "text" rather than txt.
I assumed you meant you took a .txt file of text and extracted any and all videos from it.
"Show HN: roll.io eats text and shits relevant youtube videos. Useful?"
The proposition is so obvious you should just spell it out on your home page, like, have a text box with some pre-populated text and a big arrow that says "becomes" and then a playlist of youtube videos.
I assumed you meant you took a .txt file of text and extracted any and all videos from it.
"Show HN: roll.io eats text and shits relevant youtube videos. Useful?"
The proposition is so obvious you should just spell it out on your home page, like, have a text box with some pre-populated text and a big arrow that says "becomes" and then a playlist of youtube videos.