The comment on monitors is true to an extent...however you can tell when people are using very high end cameras/lenses, and to handle those size files, their computers are likely to be pretty up to date.
Its not to say a retailer doesn't have the best of intentions and still posts ridiculously inaccurate pictures.
What drives me crazy is when someone/some shop posts "these photos are straight from my camera, they are shopped like so many others" and they are to most obscene pictures out there. Not even taking the time to learn that if you take a JPG under actinics and dont adjust the white balance the coral and everything around are going to be dark blue, or look 5x more saturated than normal.
Its one thing to post pics, and not know any better, but when statements like the one mentioned above are made, and than those type of pictures are posted it tells me to run far and fast.
***TIP***
IF PICS SHOW EGG CRATE, AND THERE IS A BLUE GLOWING EDGE AROUND IT, ITS HEAVY SATURATED, AND NOT AN ACURATE PHOTO. UNLESS OFCOARSE THEY STATE THAT IS AN ACTINIC ONLY PICTURE.
If anyone ever comes across a picture of a coral, and is questioning its accuracy, please feel free to PM a link, and i SHOULD be able to verify it one way or another for you.