I guess you could interpret my logic as Red = Blue if you ignore the image in the OP, and take my statement at face value without considering the context. However, that's not the kind of argument I was making.
For example, consider a topic that routinely pops up on this forum: Capitalism vs. Socialism. Inevitably an argument breaks out about what the word socialism means. Socialism is an abstract term, and the meaning of the word has evolved along with the political landscape. Not only has the meaning of the word shifted over the last century, but there is also a vast web of ideological thought that can trace their roots to the word socialism. It's not easy to summarize a word like that in a sentence or two. Dictionaries are great tools when it comes to understanding a new word, or to clarify what a word means, but they don't hold complete semantical knowledge. With that said, you can always count on someone to link the Webster Online definition of socialism in an attempt to lock down the word to one absolute meaning.
I don't have anything against using dictionaries; they're excellent reference tools. I'm also in favor of people using precise language when communicating, and to avoid being intentionally vague. However, I was commenting on the pretentious simple mindedness in the OP's image.