This is a unilateral decision. A couple of years ago, 500px.com launched their “Market Place”, where photographers could earn money from selling their photos. However, there were two immediate problems. First, they let Pinterest members get and use the photos for free anyway. Subsequently, I have almost stopped uploading photos to 500px, and restarted using Flickr. Secondly, they offered a measly 30% of the sale price. The cost of employing a model, makeup artist, maintenance of photographic equipment, and photographic software cannot be covered by such a payment scheme. Understandably, photographers complained and boycotted. So, 500px bumped up the pay to 70% commission, which is better, but their prices were still kind of low. So, I never joined their market place.
Now, PetaPixel reports that 500px is again unilaterally readjusting the price. All non-exclusive market place members will have their commissions cut to 30% (again). 500px claims that in order to be competitive, they need to ‘restructure’. For photographers to be competitive, and to create photographs, we need money, and cutting the amount paid is is utterly ridiculous. The quality of product will suffer, and so will 500px’s sales. In any case, it doesn’t affect me, as I don’t take 500px seriously, as they don’t seem to take the whole thing and photographers seriously.