This means the person doing this has a general knowledge of what a meme is. He went to memegenerator.net and selected the “Good guy greg” meme yet continually types not goodguy greg things into it. All the other memes make sense and are used correctly, though.
What makes this even weirder is that someone called them out on the last time they did it, and they responded with this:
What is going on?
Is this reality?