Personally, whether or not an image was obviously done in Poser usually becomes a moot point, simply because a lot of the images in the galleries have the "looks like Poser - in a bad way" syndrome (some of these have been mentioned before):

• No shadows - This is one of the worst and most common problems with Poser renders.  It is an understandable problem, since Poser's lights aren't exactly newbie-friendly. With lots of practice, you can achieve great results, but Poser really needs point lights that can cast shadowmaps. A proper GI renderer built in would help too.

• Poor posing - This is the most justified criticism of Poser images by users of other 3d programs (as well as by other Poser users) IMHO, especially since it is the most controllable. One of the best ways to avoid this is to look at actual people or photographs showing a similar pose to what one is trying to achieve. Carefully study the twisting and rotation of limbs also, since only mutants can directly bend their arms straight up without twisting their collars at all.

• Ugly faces - If I had a dollar for every Vicky I've seen that looks like an ugly half-cat-half-Chinese mutant crackwhore, I'd make Bill Gates look like a pauper. The only thing worse than not using any morphs at all is to use too many or the wrong ones in combination.

• Idiotic expressions - This is sometimes more the fault of content creators than Poser users, although the presence of good morphs does not guarantee their proper use. One of my pet peeves is when someone uses "open lips" set too high to open a mouth instead of using "yell", with the result looking like a cross between a spastic and a candidate for emergency jaw surgery.

• Poor scene composition - Composition may be a bit esoteric and difficult to master, but simply placing random figures and/or props in the scene and rendering truly does take no skill whatsoever. This is another of the main reasons users of other 3d programs chide Poser users, and a very justified one. If you put no effort into your image, why would you expect anything but jeers from people who do put effort into their images (whether wholly self-made or not).

While it is true that a large portion of the Poser community is at a more amateur level than other 3d users, and that many of us are doing this as a hobby, there is far too much indignation around every one of these type of threads to take seriously, and there seems to be virtually no ability to see that some of the criticisms of Poser art are justified. Just because you're having fun doesn't mean anyone else is going to care for your 2 minutes worth of posing an overly boob-sized Vicky hovering somewhat near the ground while staring in a random direction and gritting her teeth.