It will probably drive away a lot of adults, though. Even if they are unaware of the Fediverse or don’t consider it an acceptable substitute for Reddit, they won’t stay if the threads are dominated by bored teens screwing around.
It’s already bad enough. On my single visit back a few days ago it struck me that the largely ignorant and unperceptive comments I was reading were probably written by kids who were just killing time and didn’t actually have much interest in the topic at hand.