One problem with OpenAi advertising is that users are already moving towards Gemeni, which isn't advertising.

Chatgpt is mostly worse than Gemeni too (arguably) and isn't nearly as rate limited. So they're already losing users and making their product a worse experiance than their competition.

Sure OpenAI will make some money from ads but will it be anything close to what it takes to quench the amount of money they're burning? It seems unlikely to me. They really need to be bought out by a sugar-momma who can afford to play this kind of game like MSFT.