I mean in terms of roleplaying as the character of the soul I'm currently prescribed to the Krissociation Meta, which asks the daring question of "what if Kris' SOUL, the culmination of their being, is in fact a part of Kris and not some outside possessing demon entity" and the character you're playing as is just part of the wildly dysfunctional Kris system.
P.S. That being said I still think that Krissociation Meta backs up the SOUL spelling out swears. Kris sings swears at church. They would 100% start spelling out the fuck word on that board.
Oh 100% I can totally see that vision too. I love the idea of Kris being a system, that's a really cool headcanon!
to jump off of that. It's really easy for me to get swept up in the general fanon perception of kris & the soul having a purely antagonistic relationship. I constantly have to remind myself that it is not, in fact, 100% canon or the ONLY way to read the text.
if I'm really pressed to think on it hard, I'm STILL of the mind that I was way back when chapter 1 released that "the SOUL is some COMPLETELY external force POSSESSING KRIS!!!!" is kind of a... reductive? way to examining the text.
It reminds me of how I think the Chara Flavor Text theory from undertale is at once both an interesting way to incorporate chara into the narrative AND it reduces Frisk's presence in the narrative too much for my liking. Like, you're telling me all these funny ways Frisk interacts with the world is JUST chara talking? boring! it would also prove flowey was "right" in a weird way in his behavior to treat the player like chara, so negative points there too.
My personal reading of Kris' situation back when ch1 came out was some kind of literalized dissociation in response to trauma. like they were presented with the fact that they're responsible for not just their own well being but also two new friends. Their responsibility as a leader was represented by the SOUL taking damage for everyone. and that stressed them out too much so they ripped their heart out.
These days w/all the new information we have it's implied this has been going on even before the start of the game, so who knows honestly! I sure don't have all the pieces!!