I used to get that anti-climax feeling, until I found this forum. Now I know that at least 5-10 fine & thoughtful people will listen to a track that's posted, and that's enough. Previously pretty much only the band members themselves heard them.
I think it's a funny thing that with other hobbies like painting, people think it is more normal just to paint for the joy of it. No one would be that surprised if you told them you had an attic full of amateur landscapes. But with music, there often seems to be an expectation that you need to be doing it to 'make it big' / make money / get loads of fans, etc, and not achieving that can turn some people off this brilliant hobby. Luckily it feels like this forum includes a lot of people who have got over that mindset and are happy just to be making some really impressive, hidden pieces of art, for the joy of it.