I don't know. yarn never really turned into a vehicle to sell Facebook, though you always kind of transiently knew it was FB that offered it. I imagine that sort of transient advertising is it's own value, too.
As much as I dislike facebook they have been pretty good stewards of their open source projects and mostly seem to let them stay isolated.
As much as I dislike facebook they have been pretty good stewards of their open source projects and mostly seem to let them stay isolated.