Agreed - with things like usernames and passwords, you want to make it feel like they're being involved in process, which helps create a connection. It also helps with the 'stickiness' of your website.

If I were to give 2 real world examples, imagine a conversation between 2 people.

In conversation one, Person A is constantly talking at Person B, not too, but at - Person B doesn't feel included in the conversation, so probably loses interest and tunes out at some point.

Conversation two is a simple exchange between 2 people, with information going backwards and forwards. This conversation is more 'sticky'

If anything, I would work at ensuring that you have minimal information required at signup - username, password, email address, simple and interactive.

To take it one step further, one could argue that this is infact the perfect configuration for signup information because you are requesting 3 pieces of simple information which is perfect given the human brain's natural affinity to the number 3.

Example 1) Comedians usually deliver jokes with the punchline as the third part of the joke, because it has been proven to be naturally funnier...

Example 2) Lots of marketers like to highlight that their product takes only "3 easy steps".

Thats not to say that thinking outside the box is a bad idea - kudos for giving it a try dude :)