Wow! that’s impressive. Freebase is really growing into a huge machine readable database of the world’s knowledge. Freebase is growing rapidly because bulk uploads are possible and scrapers are automatically feeding data into it. It will be interesting to see other serious applications besides Powerset making use of Freebase data. However, it is true that the interface is still complicated for the ordinary human users. Wikipedia is far simpler, user friendly and popular. Moreover, entering data into Freebase is not so flexible due to the strict data types required. Users may not always have perfect data to enter. That is why I intend to keep StYLiD interface simple and flexible for input. It is not at all intended to be another world’s database. Rather it is intended to be a simple platform to enable ordinary users to share a wide variety of structured data.
Metaweb’s Freebase Now 60% Larger Than English Wikipedia – ReadWriteWeb