He didn't say anything. I logged into the Aetherlight to check if that was an update, then didn't see anything change. Thus, because the level was under the players' name, I simply thought it was a bug. The context of the discussion was "why is the beta testing taking so long?" so posting a picture without comment seemed to be an answer.
What's more significant it that there is a full bar under the player's name. It's possible that Mech is introducing a PvP system. It's also possible that the bar correlates to the player's Aethermeter level, and the shield icon indicates that the Aethermeter is full, possibly to make them eligible for a battle.