The reason for that outcome was likely two-fold: 1. If your memes were analogies to the dry technical concepts, then the simple, easy to digest analogies were

The reason for that outcome was likely two-fold: 1. If your memes were analogies to the dry technical concepts, then the simple, easy to digest analogies were the key here, not the memes themselves. 2. Pictures are worth a thousand words. The more visual you can make your writing the better. Even something as simple as using bullet points instead of dense paragraphs of text works wonders. But the key is to use graphs and illustrations to explain and show concepts wherever possible.