Or at least everyone who's covered most of their September sub. It's just that people whose subscription runs out really close to September 30th won't really benefit from the free period at all.
I know it's just $10, the price of a meal, SE needs money, BETTER LUCK NEXT TIME OH WELL etc. but it's kinda frustrating when your sub runs out on September 29th and you could have benefited from the promotion by just waiting a day or two to resub.