I think people say this because there was one specific 6TB model that does really poorly in BackBlaze reports, combined with a generally poor understanding of statistics (“I bought a Seagate and it failed but I’ve never had a WD fail”).
I will also point out that BackBlaze themselves consistently say that Seagate and WD are pretty much the same (apart from the one model), in those exact same reports
I think people say this because there was one specific 6TB model that does really poorly in BackBlaze reports, combined with a generally poor understanding of statistics (“I bought a Seagate and it failed but I’ve never had a WD fail”).
I will also point out that BackBlaze themselves consistently say that Seagate and WD are pretty much the same (apart from the one model), in those exact same reports