If you use an hammer to kill a mosquito obviously it's a bad idea. The hammer is useful to put a nail in the wall. In my current job I introduced a configuration store based on serialization. Obviously, instead of storing everything in a blob, I created a table with some generic string id columns and a generic key that is an object serialized in JSON and a value that is the configuration object serialized in JSON. In this way I can have the best of both worlds, a generic configuration store that is also indexed on the string ids and searchable on the generic key.