Mail Trends is written mostly in JavaScript.
Across all JavaScript projects on Ohloh, 18% of all source code lines are comments. For Mail Trends, this figure is only 12%.
This lack of comments puts Mail Trends among the lowest one-third of all JavaScript 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.