[ghayes]

Be careful that coverage is a proxy metric to good tests. Striving for high coverage can mislead you on the quality of your tests.

[rootusrootus]

On the flip side, encouraging good coverage usually ends up uncovering some bugs that might otherwise have gone unnoticed until they bit someone.

[Mikushi]

On the other flip side it encourages writing test that have zero business value.

[aianus]

High coverage is necessary but not sufficient, sure. I don't think you can have a good test suite with low coverage (< 80%).