In those cases, a malformed request is common enough that discriminating between well-formed and malformed should be thought of like a first-class part of handl

In those cases, a malformed request is common enough that discriminating between well-formed and malformed should be thought of like a first-class part of handling a request, not an error-handling situation. Errors are when things go wrong that you don't expect to usually go wrong* *for varying values of usually, YMMV, use your own judgement, etc