So, you do get points for linking to a source! A scholarly source literally about trauma! Good job.
However, that Bessel van der Kolk article is from 1989. We didn’t know as much then about how people with trauma heal, or what makes something safe vs retraumatizing. Here’s a 2017 piece where van der Kolk talks about the value of psychodrama and roleplay in healing from trauma! Revisiting your trauma in a way that connects viscerally to your emotions and experiences is part of the healing process.
In fact, the entire healing process has been described as “pendulation”–PTSD is the abrupt back-and-forth jerk between being sucked into the traumatic mindset, and complete dissociation and distancing from reminders of your trauma. Healing happens when people learn to take control over that process, so you can move back and forth at will between feeling emotions associated with the trauma, and a sense of calmness and safety.
The big difference between reminders of trauma that are going to be retraumatizing, and those that will help healing, is whether the person feels safe, in control, and able to predict what comes next. This especially demands the ability to end the activity when it becomes overwhelming. In physical encounters, like having sex with a stranger or driving along a narrow cliff road, that might be very difficult–being traumatized might make it very hard to tell your partner to stop, or there might not be a safe place to stop or pull aside. That’s why, when revisiting trauma, it’s best to make stopping as easy as possible–something people can do simply by turning away, or focusing their attention on something else.
So yes: If you find a story, video, artwork, or interaction distressing, disgusting, or upsetting, you SHOULD NOT just force yourself to “tough it out” and keep paying attention to it! Even if it’s just upsetting or enthralling, it’s helpful to be able to take breaks, work on relaxing your muscles, drink some water, take deep breaths, and remember the world around you.
In fannish relationships, we have to remember that nobody is obligated to read, watch, see, or listen to ANYTHING. Anyone can nope out, at any time, from anything. Your best friend in the whole world doesn’t have to read your fic or watch your favourite TV show is there’s something in it they don’t feel up to seeing! It is NOT OKAY to pressure someone to RP with you, read your fic, or do anything else if it makes them feel uncomfortable.
What is Online Sexual Exploitation and Abuse?
What is Digital Self Harm?
That said, if someone does feel centred, in touch with their emotions, confident, capable, and wants to go back to a reminder of their trauma, that’s theirs to do! It does NOT help to call someone a freak or shame them. Shame makes PTSD much worse, while self-compassion and social support are major factors in healing.
I hope this puts some of your misapprehensions to rest. PTSD is a big and complex subject and it’s easy to get confused, but it’s frankly misleading to tell people they will “never truly recover” because they’re doing their own version of very well-documented treatments for trauma.