I've used it and unfortunately nobody is on it. Not even for boring discussions. Imo your best bet nowadays is to find obscure discord servers. it has wide adoption and doesn't have mass appeal since each server casts its net only as wide as it's admins can reach.
it's at least decentralized and discord afaik doesn't have employed mods that police every discord made out there unlike reddit. also discord, you need to opt in to ANYTHING. twitter you kinda do as well, but they've sort of turned into a weird news site now.