Some dude on ArmorGames was creating pictures to celebrate every 100 post milestone he achieved. People thought this was pretty funny so they started posting pictures composed entirely of their post count.
Hmm, is it my favourite meme? That's a good question, it's hard to beat some of the original memes (like All Ur Base, that one's at least 7 years old. That's where my most commonly used catchphrase "For Great Justice" comes from.) But it's up there, and it sums up quite a bit about my approach to stuff.