No offense, but thanks to marketers lots of websites became sales pitches.
Before I used to read Quora and get some insights, now for each question there are 10 answers with advertising product they are making.
I think we need different kind of internet.
Anytime, any website becomes popular and generated good amount of authoritative knowledge, marketers join and make it pitch deck website.
Please share your knowledge sources.
* https://www.allthingsdistributed.com/ - somewhat ad kind of website, but contains valuable knowledge
* https://aws.amazon.com/builders-library/
* https://blog.pragmaticengineer.com/
* https://research.swtch.com/