I wouldn't be into something like this. I don't think my YouTube history gives a reasonable insight into who I am or who would be a good match for me. Even if it did, I don't think that automated analysis of that history can be done with reasonable accuracy (I'm basing that on how awful YouTube recommendations are).
"i don't think my Youtube history gives a reasonalble insight into who i am or who would be a good match for me" i think it does tell about your interests if you spend a lot of time on youtube..... about the automated analysis of the history, i don't know that i would need to try it
But thanks for your constructive criticism .. let me build something and will show it to you