A lot of end users run ZFS through TrueNAS/FreeNAS and I indeed found that community to spread a lot of misinfo and un-actionable advice. I liken them to gamers lapping up any snake oil solution to get 0.1 fps more. I would suggest anyone trying to learn about ZFS to avoid it, it definitely was counter-productive to me.
Reddit, random blogs and official documentation (often that by Oracle) turned out to be much better resources.
Reddit, random blogs and official documentation (often that by Oracle) turned out to be much better resources.