People hide this pattern called "loss" in unrelated context to confuse people. And people who recognize it feel smart, or angry, or disappointed. It's a form of mild trolling, there is not much more to it. The meme originates from a comic but this is completely irrelevant.
A and B are also programming languages. A is an APL implementation and B is a precursor of C.
https://aplwiki.com/wiki/A https://en.m.wikipedia.org/wiki/B_(programming_language)