CSS buddypress daily

I have a question about Buddypress Daily theme. When I check the CSS with firefox there is a lot of duplicate CSS styles that get overwritten. Why are they there to start with? Is this a bad thing to have?

Example:
http://www.ge...lay.com #5 (line 939)
body {
background: none repeat scroll 0 0 #F9F9F9;
color: #222222;
font-family: Arial,sans-serif;
}
http://www.ge...lay.com #2 (line 379)
body {
background: none repeat scroll 0 0 #F9F9F9;
color: #222222;
font-family: Arial,sans-serif;
}

The second one is striked through, if I use a child theme I get like 3 calls to the same element. It seems like this would be bad.