That's awesome, I think this is the perfect CPU for my next ZFS NAS. If you try to find ECC support in Intel's lineup, it's hard to find much. Either the low end Pentium, or the high end Xeon ($$$).
Nonsense. Xeon e3 all have ECC AFAIK; the whole line. My old low end Xeon e3-1225 has it, and the latest e3-1225 v5 has it too. It's a $200 chip and is eminently suited for ZFS NAS (that's what mine is doing) - as well as desktop.
If all you want from it is a NAS, then said low-end Pentiums will do fine. The C2750, for instance, is plenty fast enough to drive a large number of HDDs.
Although right now there's a bricking bug to worry about, so maybe not that particular one right away.
This is not true. VT-d and ECC were thought to be removed, but these features were simply unlisted, not removed. Intel Ark now shows them as available, e.g: