I went back and checked my SO account history. I stopped posting answers regularly at the end of 2011. I can't remember now what drama caused me to stop, but in 2011 I was posting 2-3 answers per day, then in 2012 I didn't post anything until mid-year, then about a post or two per year, and my last post was over 6 years ago.
Digging through my local notes and journals as to why I stopped, I have an unpublished draft blog post from 2012 that has some examples of bad questions from 2012, and I later added https://meta.stackoverflow.com/questions/252506 to it as something that resonated with me - "Why did I even help this guy? I have just been wasting my time". I must have been burned out on the whole thing by that point, but it was 10+ years ago and I've not even visited SO in years.
I do remember they added a tier of moderation around this time, and I had sufficient points to have access to that. Every time I visited the site it showed a red dot on the stuff-to-do icon, encouraging me to review a queue of bad questions. I'm pretty sure that was when I decided to stop contributing, because the site felt like it was more focused on the tedious bureaucracy of it all than the technical stuff.
Digging through my local notes and journals as to why I stopped, I have an unpublished draft blog post from 2012 that has some examples of bad questions from 2012, and I later added https://meta.stackoverflow.com/questions/252506 to it as something that resonated with me - "Why did I even help this guy? I have just been wasting my time". I must have been burned out on the whole thing by that point, but it was 10+ years ago and I've not even visited SO in years.
I do remember they added a tier of moderation around this time, and I had sufficient points to have access to that. Every time I visited the site it showed a red dot on the stuff-to-do icon, encouraging me to review a queue of bad questions. I'm pretty sure that was when I decided to stop contributing, because the site felt like it was more focused on the tedious bureaucracy of it all than the technical stuff.