The story is probably going deeper. I bought from an official seagate reseller in Germany and received 2 drives (3 if we're counting the one that was DOA) that where actually drives with SMART data wiped. Note the discrepancies in my poweron time due to the RMA of the first drive (done by the retailer).
Code:
$ sudo smartctl --all /dev/sdc | grep Power_On_Hours
9 Power_On_Hours 0x0032 099 099 000 Old_age Always - 1677
$ sudo smartctl -l farm /dev/sdc | grep -i "Power on Hours"
Power on Hours: 25958
Spindle Power on Hours: 1347
$ sudo smartctl --all /dev/sdd | grep Power_On_Hours
9 Power_On_Hours 0x0032 099 099 000 Old_age Always - 1462
$ sudo smartctl -l farm /dev/sdd | grep -i "Power on Hours"
Power on Hours: 25840
Spindle Power on Hours: 1132
For people who don't want to do the maths, it seems to me that the drives have been on for ~60days (I bought them in december so makes sense) and yet show power on hours more like > 3yrs.
Seagate support is impossible to contact, the retailer seems mostly helpful so far, I obviously await their new response since reading this article...