An exception that proves the rule, but KRAZAM's channel on Youtube has legitimately helpful ad reads. Rare Data Hunters [0] for example ends with a 1 minute Cloudflare ad that's basically a crash course in their services. Having worked with GCP and AWS but not so much with Cloudflare, that ad gave me a surprisingly clear idea of what the important pieces would be.

Truly an exception though. I think generally the only people for whom ads are helpful are advertisers.

0: https://www.youtube.com/watch?v=IU4ByUbDKNc