Is this a cheat in-game or am I missing something?

he already made money before losing routes. maybe because he doesn't play or isn't active anymore

This isn't a bug so please don't post it in the tracker.

This is an airline in World S1 that was previously quite active from there start of the game world. I suspect that the player sold all planes; his terminal was certainly sold. I sort of recall the player putting his airline up for grabs for anyone to manage in the forums?