I was one of several mods of a niche hobby sub. All of us were modding mostly from mobile phone 3rd party apps. Killing the API seriously hurt our ability to moderate the sub.
The hobby is historically male-dominated but had a nice, inclusive vibe going where most people understood a penis was not required equipment for this hobby. The API changes also coincided with a wave of incel gun-nuts. We couldn't stay on top of it. Every time we logged on, another nut telling women inappropriate things and ruining constructive conversation on actual questions about the hobby.
At one point I enjoyed modding, I rarely had to ban anyone, it was mostly just chiming in to clarify something or helping a poster ask questions in a better way or pointing them to resources they may have overlooked or otherwise trying to encourage positive engagement. Logging on to a wave of racist, sexist asshats was not what I signed up for.
It no longer brought me joy, so I Marie Kondo'd it right out the window.