What consequence might result from neglecting cross-browser testing?

Neglecting cross-browser testing can lead to dissatisfied end-users due to inconsistent performance. This happens because different browsers can interpret web technologies—such as HTML, CSS, and JavaScript—differently. If a web application works seamlessly on one browser but not on others, users may experience features that malfunction, layouts that don't render correctly, or performance issues that frustrate their experience. Over time, this inconsistency can erode user trust and satisfaction, leading to a negative perception of the application and potentially impacting its success in the market.

Other options pertain to aspects that are less directly related to the impact of browser inconsistencies on user experience. For instance, while increased server load or higher server maintenance costs might indirectly result from issues caused by poor performance, they are not direct consequences of neglecting cross-browser testing. Additionally, the ability to use automation tools is generally unaffected by whether cross-browser testing is performed or not.