This website started because mailchimp offered a free domain to test out their new web site builder software. How bad could it be, it's Mailchimp, they're a big company and they understand usability right, and there are lots of good web builders out there. Actually it's terrible, one of the worst I've come across (and I test these things for fun!) Hence the site looks this way because that's what it offers and it is fun to throw things in and not care so much, and why spend loads of time on something so painful. Maybe it will get better in the future … or not.