How naive.
More data, more better.
I'd be interested to hear your value proposition specifically for the Last.FM stats. I am genuinely curious, I just don't see it for myself.
On an anime related note, I finished Kaiba a few days ago. If you are ok with the art style, it might be worth a look. Exploring the intrapersonal issues you would deal with in a universe where changing your body or memories would be as easy as if they were stored on a SD card. It wraps up fast at the end and leaves a lot of questions unanswered..... but I think the focus really was on the exploration of the world more than the characters within it.
Would you still know or connect with your soulmate if you were both in a different body and had your memories tampered with?