Even an auto response would be better than nothing. An auto response stating your details have been received and if your application is to be taken further they will contact you, or words to that effect. Something simple to do. Two minute job to set up actually. Common courtesy really, don't you think?
Let's give them the benefit of the doubt. Maybe the computer literacy skills within the outfit doesn't allow them to set up an auto reply or even reply!.
Look at it this way. If they are needing people and applicants are treated like that, how are people going to be treated when they are not needed? it is also a good indicator how employees will be treated and valued within their "organization".