Synonymous

I have had a few minutes to peruse the guilty pleasure that is tumblr now that the classes that I teach have come to a close. I have become perplexed by what I have found beyond the more mainstream and friendly blogs that I follow. Mostly in this perplexing relationship of .gif files:

Why is it that kitten and soft-core porn short stream video files go hand-in-hand? And why would anyone post either and think it was a good representation of their personal taste? 

This may be one of the few things Freud is still valid in analyzing.