Groups are a disorganized mess of the same repetitive trash over and over. It's the same problem in every group. Just miles and miles of random posts with no way to organize them, and a shit search feature.
The only reason it killed forums is because they lowered the effort barrier. Forums were great because it required logins, and a minimal level of competency in order to use it. Only people who really wanted to be part of the forum would join. A simple login was enough barrier to keep out people who didn't want to put in any effort to their contribution. Facebook made it so that you can just go click a button and upload a picture and contribute a shitpost with no effort.
The only reason it killed forums is because they lowered the effort barrier. Forums were great because it required logins, and a minimal level of competency in order to use it. Only people who really wanted to be part of the forum would join. A simple login was enough barrier to keep out people who didn't want to put in any effort to their contribution. Facebook made it so that you can just go click a button and upload a picture and contribute a shitpost with no effort.