"Recruit a friend" code thread - New player exp boosts!

[Niwashi]

Instead of everyone just copying the exact same posts into each of three threads for this, making them completely redundant duplicates of each other, how about we pick one and everyone stick with that?

I propose we go with the "Friend Recruitment Code?" thread, as it's the longest running of the three currently duplicating threads. People who want to post codes for others to use, post them there and let this one and "another recruit a friend thread!" fade into the distance.

[Redplague]

All codes used.

Thank you to all who used them and if you get onto Gilgamesh let me know so I can help you with your adventures!