Well, as somebody with experience developing niche sites, let me explain. Typically a "niche" site is appealing to a slim set of users. It's called the "long tail." The idea is that by appealing to a single like, you can get a more concentrated bunch of uses. You with me so far?
By that logic, this site appeals to bacon likers. It's a diverse group. Hell, I'm sure you know some bacon likers yourself! This site is perfect for them, because it effectively ties into other programs without restraining functionality to any difficult degree. I tried it out on lucrative sites such as Facebook, Google, and Hacker News, and I'll report I was impressed!
Now, the fascinating thing is that with their bookmarklet, you can easily add this functionality to any web page you want! Think of it like Web 2.0: sites aren't static any more. People can add their own functionality and modify pages. This one does it simply and effectively. I haven't even noticed a lag!
Hopefully you find this site as fascinating as I did. I regret the lack of simplicity and focus in web sites nowadays, and I think that by following the lessons set in place like a simple site like this, a lot of developers could do some genuine good.
