I do think steemit.com's biggest positive is the massive dollar signs next to posts and comments. If a passerby saw that, they'd likely be intrigued.

Even though steempeak is my favorite interface, I'll often send steem links to steemit for those big $ signs as people aren't likely to know what an STU is.

^{That plesant feeling when you perform a Google search and there is a steem article at the top of the results.}