The libreoffice website, on the other hand, has a lot of visual elements (icons, colors) that don't really fit well with each other.
Visual-heavy websites can be quite nice, but they need to be really thought through.
Do they? A few times a year we get a "I made a better UI for HN" article and almost without fail everyone seems to respond "This is unneeded and worse. This reduces usability".
With so many awesome people in this world, I'd like to think there is at least 1 great designer and front end guy who would donate time to completely scrap the current design and give it a facelift.
Who wouldn't want that on their resume, "I designed the website for LIBREOFFICE." That's deserving of major kudos, at least in my book.