That's a great idea, imo, however I'm afraid it'd only work if people remain in the server for a long time or join at the right time (in order to get the full "effect"). But since it shouldn't do any bad to order the levels chronoligally and it has this possible benefit, i highly second this suggestion. Maybe you could even add years to the level's textstrings (like level mady by blah) to the levels which don't have any thus far, that'd be cool.