The discussion here actually names the site: https://news.ycombinator.com/item?id=434510

There's plenty more of value there. Unsurprisingly, given that it comes from 2009, this has been submitted before. They're all fairly old, though, so if you have anything new to say you'll have to say it here.

https://news.ycombinator.com/item?id=3128300

https://news.ycombinator.com/item?id=2853365

https://news.ycombinator.com/item?id=2812649 (some discussion)

https://news.ycombinator.com/item?id=1786879

https://news.ycombinator.com/item?id=1700583 (2 comments)

https://news.ycombinator.com/item?id=489569

Amusing historical comments from 4.5 years ago:

facebook may not be around next year. In fact, given the way things are going for them, I would not be surprised if your site outlived theirs.

and

Facebook covers only a small percentage of people online.

It's an interesting story, but doing the math - $300 million/$25 billion in revenue .... Somehow "The 1.2% Button" is not as catchy a title.