I agree, but my sense is that the number of people and projects willing to fix complaints reported by compiler warnings is larger than the number of people who

I agree, but my sense is that the number of people and projects willing to fix complaints reported by compiler warnings is larger than the number of people who care enough to run a separate tool over their codebase. This is purely a UI thing -- if the compiler had a -Wlint option that ran lint and integrated its reports into its own warning output it would probably have a similar effect, especially if enabled by default...