Compiz Fusion is written mostly in C.
Across all C projects on Ohloh, 19% of all source code lines are comments. For Compiz Fusion, this figure is only 7%.
This lack of comments puts Compiz Fusion among the lowest 10% of all C projects on Ohloh.
A high number of comments might indicate that the code is well-documented and organized, and could be a sign of a helpful and disciplined development team.