Creating a more operable and navigable website will ultimately benefit all users while still meeting WCAG guidelines. Making your web pages easier to comprehend will allow everyone - disabled or non - to find what they’re looking for quickly. If you decide to follow the guidelines, your website will likely convert more leads across the board because users will trust that they can always easily find the content they need.
The words in the tag should be more than a description. They should provide a text equivalent of the image. In other words, the tag should include the same meaningful information that other users obtain by looking at the image. In the example of the mayor’s picture, adding an “alt” tag with the words “Photograph of Mayor Jane Smith” provides a meaningful description.