Should a website specializing in smartphone technologies, offering explanations on using and developing the Android system, be shut down, or should it be continued, considering that its owner believes it does not provide beneficial knowledge to the Muslim community and is a waste of time?

There is no harm in continuing to open the aforementioned website, as its explanations are among the permissible sciences whose benefit extends to people in their religious and worldly affairs. Sciences vary in their nobility; the most beneficial are the Sharia (definition) sciences, then the important worldly sciences that fall under communal obligations (fard al-kifayat), then other beneficial sciences of lesser importance.