The article talks about 'lots of comments'. The occasional comment can be helpful but many things are just as clearly expressed in code as in comments. E.g., if

The article talks about 'lots of comments'. The occasional comment can be helpful but many things are just as clearly expressed in code as in comments. E.g., if you write a numerical algorithm you should probably either explain it or add a reference. But if you start to see things like DatabaseConnection conn; // Connection to the database things have gotten very badly out of hand.