They're already is! It's called Reddit.
/r/<penta_tons_of_junk>
Maybe it could be a mega thread in general, like religion.
When it's used on-topic, like an alternative to google, it's not really the key/focus issue in the posting (the content of the answer is).
Added later, after I ran across this news article about z/OS becoming AI-infused:
https://www.ibm.com/common/ssi/ShowD...012/index.html
Once an AI-infused Linux distro becomes popular, then a sub-form can be created for that AI-infused Linux distribution!