BTW: You just witnessed what every programmer of small-audience open source software eventually experiences (unless you are extremely lucky with your users):. People don't give feedback. This is OK as long as you have your goals right. Mainly scratch your own itch. And when someone else finds it useful, submits patches, etc., this is a plus. But don't base your motivation on it..
Good work btw. But after fishing for compliments these words probably don't mean as much to you, as when they are given freely

Oh and BTW: If your project gets hugely successful you have the inverse problem. Too much feedback, too many contributions. In this situation it is crucial not to grow hostile on your userbase just because you don't have an efficient way to handle feedback and the communication needed.. A tendency which i think took place within the nexuiz development team to a certain degree.