My first moments playing old blockland 0002 mods, back when I found out about BL in '07
On a lazy summer afternoon, a random player showed up in a server I created. We chatted a little, and worked together on building a base that extended from underwater to sky level. By the time we were going to leave, we agreed to meet up in-game again. I joined up with the group of players he was in, and the things we did together resulted in some of the most fun I've ever had in any multiplayer game. Even after we moved on from 0002, we continued to chat and join each other's games. Even though we've pretty much stopped talking to each other by now, I still consider him to be a good friend and I'll definitely never forget about him.
That said, Blockland tends to be generate a lot of good memories. I'm actually a little surprised that there aren't more posts about it.