diffused has the bloodred trait, bloodred has the bloodred trait. of course, old school bloods look nothing like those brownish bloods you often see meanwhile, but both carry the same trait.
it's weird that people start to rename things after such a long time. the central issue is that the "diffused"-people automatically connect the word bloodred with oldschool bloodred phenotype, but not with the non-scientific name of the gene. When I talk about bloods, I always mean the gene - not the phenotype. I believe that's the fundamental misunderstanding in that context.
afaik people start to rename bloods because they don't look red enough - under these definition I wonder what a phantom looks like or a ghost...and why nobody starts to rename those morphs too?!
it would have been much easier if it has stayed on the bloodred and oldschool bloodred status, it's just a non-scientific name such as ghost, phantom, opal or silverqueen.