The purpose of these lint tools is to attempt to standardise your opinions as the correct way of doing things. Without a tool that 'checks for correctness' (against someone's opinions), they're perceived as just that: opinions.
It's a very clever way to convince others of your ideas. The same thing has happened with JS Lint. Suddenly many people agree 'this is the correct way to write javascript', you ask them why and they point at the tool as if the correctness is self evident.
It's a very clever way to convince others of your ideas. The same thing has happened with JS Lint. Suddenly many people agree 'this is the correct way to write javascript', you ask them why and they point at the tool as if the correctness is self evident.