I'm not saying that nwienert is necessarily right or wrong, but it's strange that this post received such a strong reaction compared to the Font Awesome post.
Bootstrap is intended for use by whoever wants it. Font Awesome was presented as a tweak, an improvement. Svbtle is intended for a small audience, and Obtvse is a straight rip-off
A few days ago, when it was posted (http://news.ycombinator.com/item?id=3672526), the comments were largely positive.
I'm not saying that nwienert is necessarily right or wrong, but it's strange that this post received such a strong reaction compared to the Font Awesome post.