Hey Don,
I'm one of the new kids on the block here, so I can't really talk from any experience on this forum (or much experience with photography either!).... but I will at least give you my long-winded opinion FWIW.
I have a lot of respect for the type of photography you do, and admire what you are trying to portray through it.
I don't always find it aesthetically pleasing, but as Toad said, pleasant aesthetics are not a prerequisite for art.
Your images can be challenging and require some thought on the part of the viewer. But I think if the viewer is at all unsure about how to interpret a particular image, it is just human nature for them to keep quiet rather than look like a fool if they said something and "got it wrong".
I imagine there are plenty of people here who appreciate your images, but not as many who would feel comfortable challenging them and offering advice.
I think one of the reasons why I might not post many replies to your photos is because I don't necessarily understand the message you are trying to convey with them all.
It is very difficult to critique at image when you aren't 100% sure you know where the artist was trying to take it.
That is not necessarily the fault of the photo, the artist, or even the viewer.. but could simply be because the photo is presented without any context, so there are no other clues apart from the image itself.
I mean, even if you saw the same image in an exhibition, you would often be able to understand it better by looking at the other images it was placed with, knowing other work by the artist, or even the surroundings or nature of the exhibition. All those things give it context.
Would Marcel Duchamp's "Fountain" still be interpreted the same way if it were presented outside of an art gallery without any context?
When you post an image you wish to be critiqued, if you included a paragraph or two about why you took the image, what elements you are trying to emphasize and what message you are trying to portray, then it might give the viewer more grounds for a critique.
Of course some images don't need this, and perhaps it is also partly because I am new here and don't know you or your personal style well enough to be able to understand your language... but it won't do any harm
But I love the risks you take. You aren't afraid to shoot challenging subjects, you don't shy away from harshness or a raw look, and the "realness" of all your photos really comes through.
And your shots might not always completely "work" and convey the message as effectively as you intend (and neither do mine, nor most people's), but occasionally you end up with absolute gold. The first of your "More Snow and Prarie" photos through the cab window (
http://www.shuttertalk.com/forums/viewtopic.php?id=2301) still blows me away, and is I think the best photo I've seen on this forum. I'd be proud to hang a print like that on my wall. That is a image that anyone who plays around with tripods and filters taking photos of sunsets and flowers will never get, but you nailed it.
Keep up the good work and don't be discouraged. This forum would be boring if everyone all took photos that looked exactly the same as each other. I often look at my own work and think I should be doing some more challenging things, and I think the type of work you do really IS challenging. It can flop (and might have a higher failure rate than some other types of photography), but when it works it can blow everyone away.
Cheers
Adrian