Very few source code comments
Dovecot is written mostly in C/C++.
Across all C/C++ projects on Ohloh, 20% of all source code lines are comments. For Dovecot, this figure is only 8%.
This lack of comments puts Dovecot among the lowest 10% of all C/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.