3 of ?
2) The second problem about forums was often the people who managed forums.
Elon Musk may manage Twitter, but back in the day, I could imagine him being a forum owner.
Forums often formed cliques and often attempted to control the narratives of their community.
They also easily became "echo chambers" of themselves, similar to how Facebook Groups are today.
Outside thinking and creativity was not something you could easily experience on a forum