Compare its homepage with the Hacker News homepage: HN won't be featured on any galleries any time soon, but what makes it successful is that it is really well designed. It has a clear brand identity, and the homepage is incredibly functional; you can easily scan the top news, and see what's new. Visited links are grayed out, and the only text that pops is the new headlines. Everything else is secondary, and therefore scaled down and/or grayed out.
Inbound, on the other hand, gets it all wrong. You'd think it's a well designed site—it has pretty colors, pretty fonts, pretty patterns. But that just makes it a pretty site, not a well-designed one. You can only see 10 headlines on a page above the fold, and even so it feels more cluttered than HN's 30 article homepage. Extra attention is called on irrelevant information like the rank number, or the author and his mugshot. The end result is a homepage that feels cluttered and has no clear sense of hierarchy.
This is what gives designers a bad name. This is also why, if you're building a product, you want to hire a real designer with an education and an understanding for the basics, not just somebody who got good at making shiny things by following photoshop tutorials.