Just read a book called Sway, a psychological treaties regarding why we as people make illogical and counter-productive choices. Even choices that effect our entire lives.

In order to make life easier on ourselves, we create shortcuts to deciding what kind of things merit our attention and consideration. We assign values to things.

In the art community, we assign value to art based on cues surrounding the art. The artist himself, and the kinds of people who are already giving the artist attention are such cues. If I suddenly posted photography of the quality we see among the geniuses in this community, it would not receive the same kind of attention.
Just take a look at my cues. How much of my art is already outstanding? How many of the people with whom I communicate on dA are already outstanding? I simply do not fit the part. Rather than think, "Wow, this guy is a diamond in the rough, why has no one noticed this before?", it far easier for us to think, "Oh, look at how he writes journals, his forums posts, his page views, and the kinds of comments people leave on his page. Nothing too special, his art must therefore be nothing special either".

Yes, it's unfair. That is however, just how we have come to think and process information - it saves us time and effort when sifting through the myriad of terrible people and their terrible works of art.

While reading the book, I was reminded instantly of Kafka's short story "The Hunger Artist". It's a humorous and bitter portrayal of how our perception of the artist is necessary for our perception of his art.

tl;dr - Your art is great. Everyone else is just too busy and presumptuous to let you know.