I have looked at the diaspora website. I didn't get it. I'm promise you I'm not that stupid but their website was a car crash. Why do I need to create an accoun

I have looked at the diaspora website. I didn't get it. I'm promise you I'm not that stupid but their website was a car crash. Why do I need to create an account with them? I want something as simple as WordPress. If buddypress wasn't so ugly it could be an option.