From the article, some are subscription, some play ads at the beginning, and the last creator featured has chosen not to include ads even though he knows he's l

From the article, some are subscription, some play ads at the beginning, and the last creator featured has chosen not to include ads even though he knows he's leaving money on the table in doing so. "Moore and his white noise team... offer a subscription plan. But most people listen to the free, ad-supported version. Because Moore doesn’t want to interrupt the calming aura of his show, he opts to include only pre-roll ads." "Reed, who is something of a white noise purist, knows he could make good money with advertisements. But he doesn’t include them because he worries the sound of commerce would disturb his audience’s restful slumber. 'It’s embarrassing to say how much money I would be making,' he said."