I assume it'll be hard for them to notice because it's all coming from Azure IP ranges. OpenAI has very big credit card behind this Azure account so this vulnerability might only be limited by Azure capacity.

I noticed they switched their crawler to new IP ranges several times, but unfortunately Microsoft CERT / Azure security team didn't answer to my reports.

If this vulnerability is exploited, it hits your server with MANY requests per second, right from the hearts of Azure cloud.