Do I need fuzzing? We believe that the answer is "yes, you do". Fuzzers are valuable for any complex software. Fuzz tests are not only about databases, compilers, and CLI tools - you may successfully add them to applications of almost any kind. It doesn't mean that you should go all-in for this kind of test and nothing else, but writing a fuzzer, as an addition, once you've written "traditional" tests, helped us to build a more robust database and it will certainly help you.