I would think that's expected on the STOPPED. But for NOSATS, are you sure?

Let's say the link is followed by a prospective applicant who saw a link to the SN Jobs post from a Tweet. But the listing ran out of funds before that, and the job poster / employer has not yet realized that.

Wouldn't it be better for the employer if an unfilled posting results in the maximum number of qualified applicants? (and thus, they would be more likely to use the SN Jobs service again, in the future ?)

And even if the employer ignored the part about changing to STOPPED after it is filled or for whatever reason, wouldn't it be good for the employer to continue to receive applications from the listing? Again, they would be more likely to use the SN Jobs service again. And if it was still unfilled, but still receiving applications (e.g., from the link shared in a Tweet), maybe that would persuade the employer to top up and resume the ad on SN jobs!

Simply hosting that job listing page beyond when the employer's balance runs out doesn't cost SN anything additional, and provides value to the employer. It's the inventory (space for a listing appearing in the ~jobs results) that is what is of value and thus rightly requires payment by the employer to remain in that list / results.

So that's my suggestion is only stop serving that page when the employer explicitly sets it to STOPPED.