Introducing Solid, BuzzFeed’s CSS and component library

Seconding slackstation -- small/tidy aside, there's little impetus to to have enthusiasm for this product over Bootstrap or competing libraries. You haven't differentiated yourselves in any way past what your older internal processes were. Even if this only had one whiz-bang component, that would be something. But this is just a lesser version of already existing products.

It's a subset of Bootstrap with BEM naming conventions.

Seems like another group of front-end developers who had too much time on their hands and instead of just writing a style guide on top of Bootstrap or Foundation, decided to rewrite the CSS styles below it as well.

Welcome to maintaining a separate status quo.

Bootstrap is way too heavy to build upon for something on the scale of BuzzFeed, for so many reasons. Reimplementing a subset is easy and quick and won't bloat everything up.

Sooo cleeean!