The FreeNAS community really shows just how important it is to avoid products like FreeNAS. It's built on good tech, but the issues are that the community is horrible, only tiny non-storage expert shops use it and it is broadly misunderstood. FreeNAS doesn't make any of the technology, they just repackage it. So the vendor and their community all lack the basic knowledge of what they have and the stuff that they repeat just gets worse and worse.
If this was the FreeBSD community, talking about the same technologies, the answers and approaches would be completely different. Enterprises use FreeBSD every day. They do not use FreeNAS. Once you limit yourself to a "non-expert" product, the idea of using a community for assistance causes a breakdown in dangerous ways.