More importantly, what do those numbers mean? We shouldn't upload to IS, FT and SS because our images will get swamped in the mire, tougher competition, higher chances of rejections, harder to conceptualise new images, oversaturated market?

OR

We should upload to those sites because they're fast expanding which means they get noticed by buyers, that's where the buyers are, they take in almost anything to boost their database, sales are high on those sites and they're the best so photogs go there?