Neptune Characters and Implications

Yes, this thread is made because i post #2276552 I thought about the following:
Shouldn't the purple_heart, black_heart and so on implicate the characters they transform from.
That would mean purple_heart implies neptune_(choujigen_game_neptune), black heart implies noire since they are basically the same characters but it hasn't been done before so I thought a little conversation might be helpful before rushing in since there has to be a reason (apparantly).

As much as I know and played (only rebirth though) normal and transformed (HDD) forms are visually distinct from each other. Hence, implicating them would be wrong and would only create unnecessary tag noise. Which is happening right now - for example post #2254224 is tagged incorrectly as there is no doubt that there are only 4 goddesses in their HDD forms.