It's datamining until you add the guest option. Why did you think collecting that much data was necessary in the first place?
Why did i choose it: I simply did a little less than what my other couples apps do, and where I'm from this amount of information is not considered a lot. In Sweden everything is public. Everything, as in everything: salary, address, phone number, car etc. (this is by law) So for me and my many Scandinavian test users, no-one cared. But now i see the feedback, and I am working fast to take the feedback and create a good experience with just a guest account.
If you have anymore feedback let me know, I will be sure to listen!