Warning: Long post ahead.
I've had potty accidents all my life. I am an adult baby. Maybe the two are related, maybe not. When I am stressed out or upset or scared or sad the accidents are much more frequent than at other times.
When I was in 7th grade I ran afoul of a bunch of bullies. What that did to me you can probably imagine. Things - including winter boots or my overcoat - went missing. I got beaten up a few times. Most of 7th grade was living hell. Every day I would feel like crying on the mile long walk home from the school bus. I lost myself in daydreams. One day - must have been early October, I remember fall colors and sunshine but a chilly breeze, I woke up from a daydream when I felt myself pooping. I managed to stop, but there would be no hiding it.
Mom of course was not thrilled at her 12 year old having pooped his pants. Even less so when this happened again and again. She knew I was being bullied, but she didn't think that justified me pooping in my pants. In the beginning I genuinely tried to make it home - pooping at a school bathroom was out of the question without reliable locks on the stalls. After a few times, though, I realized that pooping in my pants made me feel better.
Pretty much since potty training I had wanted my diapers back, but was too scared to tell my parents because I thought they would send me away because they wouldn't want the only kid in the world who wanted to be in diapers. (Silly, I know.)
So having accidents became something comforting, something to deal with the crushing pressure of school and the bullying. I knew mom would yell at me, but I could deal with that. She never punished me physically. Sometimes I only noticed when I already had finished pooping but even if I could have held most of it I pooped the rest in my pants intentionally. Eventually, towards the end of the year, the bullying receded somewhat, as the bullies found some other targets, so they couldn't focus on me alone anymore.
What remained was me liking pooping in my pants a lot. I wished I had diapers, but pooping in my undies was the second best thing. The accidents eventually became infrequent again and I - too scared to continue doing it on purpose on my way home, pooped in my pants in secret every once in a while.
Every phase of my life when I was totally stressed out - finals, job hunting, high stress positions - the accidents became more frequent. Eventually I moved to another country and again was stressed out for a while so I started buying diapers, first for evening and night, then 24/7, so when I don't have accidents I poop in my diaper on purpose.
Diapers made life with part incontinence so much easier, but even before pooping in my pants helped me cope with the most stressful times of my life many a time. I am not sure how things would have turned out otherwise.
It took me years to understand how much positive influence diapers, being AB and pooping in my pants had on me. At age 15-16 I would have given anything to be 'normal', to not want diapers and not enjoy pooping in my pants. Deep down I knew this was never going to be, but I wished for it anyway. Today I would not want to be any different. I am who I am. I work in a high stress position and being little and in diapers helps manage that. Being me is good.