That's a bit more extreme but if that was the case then loot will simply be created elsewhere, like increasing loot bonus or they will be forced to give hand-outs to people who log on daily so they can at least cook some troops and raid. Or they would incentivise it by giving gems to those who do, the fact they haven't vindicates that they don't really see it as a problem (in the game currently, not your example) I guess. But yeah theoretically if nobody upgraded them to reasonable levels and SC didn't intervene and non-gemmers wouldn't be able to play leaving only gemmers who would get bored when there isn't poor non-gemmers for them to look down on, and the game would die.
Luckily that isn't the case as the value to levelling collectors is higher the less you play, which comprises of many players who typically aren't on the forums. So whereas some people benefit from not upgrading them (or at least not prioritising them), others have personal gain from upgrading them and will do so.



