This rule determines if a given element
<label> contains attribute
title with the same accessible name.
Let’s examine following example:
<label for="example" title="This is an example">This is an example</label>
Assuming screen reader can read
title. In above case then
This is an example will be read twice. To avoid that this rule helps to find such cases.
Note that by default, for example, VoiceOver doesn’t read
title until Hints are turned on.
Accessibility, Best Practices