Hackers are still not representative of the mass userbase that startups are looking for if they want to be big. This matters because hackers will value different things than normal users. RSS springs to mind as an example. If, for instance, you do a webbased tool to keep track of your tasks one of the first things a hacker might look for is a rss feed so that he can put it on his feedreader along with all of his other feeds. Normal people won't even know what RSS is.

So even though you do a non-hacker product, hackers will still value features that are of littel importance to a normal crowd.