It is a somewhat complex subject and can be rooted in taste, be it visual or content.
It is something that we will see more often, and the fault is not of "the cow" but of the growth of the community. And it's something we're going to have to deal with! Tastes or perceptions play a fundamental role, I have seen an article which contains some photos of a plant or a garden, and it receives better acceptance than an article about some scientific discovery!