The explanation for these situations is actually very easy to explain. It boils down to one fact: that people who do parody post are uninteresting and unable to come up with a topic themselves ,and in order to feel part of the crowd, they slightly alter someone else's post to achieve a reaction, however slight it may be.
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Yeah true, but I'm thinking more in terms of where did this come from, most things nowadays come from memes and the deep web and I'm just asking where