I believe that means he dms AL far more than he plays (like me). So his DM credit has shot him to 4th level and he gained enough exp to get him to that 5th level. Or he got his 20 downtime (10 per scenario) and shot himself to 5th.
I have 4 DM credit characters, one is a 5th, 3 4's and a 2.
And it's not just XP you lose out on for missing a week of play. It's the experience of playing as a PC, which I'm sure I don't need to remind anyone is qualitatively different from playing as a GM.
Read more:
http://www.enworld.org/forum/showth...ue-what-are-your-thoughts/page5#ixzz3nBFugVyJ
Are you inferring here that Playing is a lot better than dming ? If so I would disagree sir. I set the scene for the group, I get to play as multiple characters and I can at times literally hold the life of the character in my hand. Dming is far far better than playing.