> You assert that ECC RAM being necessary for ZFS is just a myth but provide no justification for why that is untrue.

ZFS without ECC is no more risky than any other file system / software RAID without ECC.

As no one owes you an explanation, it would take you five seconds to Google this and discover:

1. It's been disproven, with one of the original ZFS developers chiming in.

2. The original source of the rumor was a forum post that somehow became canon.