I'm surprised people aren't talking more about "exotrauma" because it feels like yet another really shit manipulation tactic a lot of endos do. I'm not saying that pseudomemories don't exist and I do think there's some genuine people out there experiencing them, but I constantly find people as young as 12 tell me that their alters/fictives know what it's like to be straight up tortured like I was, when they also confess to not knowing what it's like to have your parents turn their backs on you
oh no, i have definitely seen that in places like systwt and systok. the DID community on tumblr is overall not super crazy, though i've definitely seen that stuff before. it's places like twitter and tiktok that have the most insane, fucked up and misinformed ideas about how DID works. and yeah--it's most definitely used as a manipulation tactic.
a friend of mine just got out of a one-year relationship with a DID faker that largely used fictive pseudomemories to keep them together.
another friend of mine had dated more than one faker who used similar, though even worse and more manipulative, tactics.
in another server i'm in, i once saw a kid venting about how someone said pseudomemories/exo trauma was fake, and got very upset about it, talking about how of course they've actually been to war, that's why they were missing a limb in the inner world!
how someone can confidently self diagnose and yet be so misinformed is beyond me, until i remember all of the misinformation in carrds and "informational" twitter threads and tiktok videos. and dissociadid.
suffice to say that this isn't just a manipulation tactic that endos use, i've seen it in use by people who claim to have DID and then describe their experiences as wildly... not DID even remotely. or by people with DID who are clinging to someone very harshly and are using anything they can to keep that person with them for their own sake.
and "exotrauma" as a concept... does exist in DID. in alters with pseudomemories, they may experience memories that didn't happen, that they perceive as traumatic, because that alter is experiencing these memories instead of memories of an actual trauma, where traumatic pseudomemories are used to be metaphorical for a trauma that happened to you, and your brain just uses dissociation to cover it up and say "actually, no, this happened and it happened to this fictive here." (not that only fictives have pseudomemories, any alter can have them.)
you can't actually have exotrauma without it covering up and being metaphorical for a different trauma. this is because DID exists within your brain and solely in your brain. your alters have only ever been in your brain, just before splitting, they may have been a larger part of your subconscious, but now they're fragmented off and separated by dissociative barriers. you cannot think yourself into trauma. your brain cannot traumatize itself. your brain is instead looking at everything that happened to it, and changing it into something else for the sake of dissociating that experience away from you and the rest of the system.
if you analyze the pseudomemories some alters within your system may have, it's interesting to look at the underlying themes and how they connect to your own trauma--if you're in a safe space to and this doesn't uncover any trauma you aren't aware of. mine definitely have a theme.
this has been a pretty long rambly answer but long story short, avoid systwt and systok like the plague, and anyone that takes pseudomemories and "exotrauma" way too seriously.