I think that is misinterpreting what the person you are replying to is saying.<p>They aren&#x27;t saying &quot;don&#x27;t let the clients do anything&quot;, they are saying &quot;don&#x27;t trust the values the clients send back&quot;<p>If the client messes up the rendering, the only person affected is the client. There is no &#x27;trust&#x27; required, because you are not relying on anything the client has done.<p>The idea of trust only comes into play if there is a consequence to that trust being broken.