Sanitizing input it&#x27;s not just &quot;let&#x27;s replace these weird characters&quot;. That&#x27;s what crappy programmers do when they adopt the &quot;can&#x27;t fail a request&quot; mentality of certain paradigms (I&#x27;m looking at you PHP.)<p>When modifying data using some secret criteria and doing the unexpected is better than showing a validation error, all bets are off.