Originally Posted by
MechaJeanix
After Judgement War Jean was no longer having split personality issues (going between herself, Phoenix, and Maddie). She still had the memories and they did effect her after this story (the very next X-factor story she Tk's a hat off a woman who she mistakes as Mastermind while in the park with Scott, she remembers Scott and Jean/Phoenix getting it on in Arizona, and she remembers Scott's proposal to Maddie when he asks her to marry him). That same story Beasts thinks about Jean having other incarnations and they also loved Scott and he loved them. Also in the final 05 X-factor storyline Jean recalls the place on the moon where she died (and references the shared memories). In 281 she mentions the shared memories with "the Phoenix creature".
Despite retcons, in Inferno it is acknowledged that the Phoenix took Jean's consciousness (in the story it says a portion of and in the Classic X-men 8 backup it is implied much more than a portion) and that portion of Jean's consciousness was returned. Most recently Tom Taylor had Jean correct Black Panther in X-men Red who tried to say she wasn't Phoenix by saying she was part of it.
The Uncanny issue where Jean proposes to Scott she remembers their fight for their lives on the moon and it implied that from the cocoon Jean willed the Phoenix/Jean to kill herself on the moon.
In Uncanny 387 Jean states she allowed their (hers and Phoenix) souls to merge. So even with the retcon a part of Jean was there inside the Jean/Phoenix force merger. Plus Jean relived some Jean/Phoenix moments in X-men Forever, and as well in Uncanny 387 where she felt the D'Bari deaths from both perspectives.
All we have is our memories of our experiences so.. even having memories is a big deal but again Jean was part of it based on the references above. I liked in the Jean Grey X-men Monday where one writer said Jean was a composite character (talking about Jean Grey, the Phoenix merger, Maddie Pryor, and Teen Jean).