Comment by soseng

I work in Liferay Portal and AUI, which is a fork of YUI. Liferay will probably be impacted greatly by this. My company has done a few large scale Enterprise application implementations in recent years and continue to do more Liferay work (It's actually booming). YUI is a huge framework and not just a library. It contains a lot of neat UI Components and Utilities. Although styling the components and making them responsive always seemed tough.