The forum's ability to stop trolls is inherently limited, it always falls back  to users protecting themselves. The ignore button remains one of the few reliable tools we have and the best choice in cases like this.

That said, the pseudonymous nature of the forum makes accountability tough. If real world identity were tied to accounts, admins might face more pressure to act against misconduct. But in an anonymous system, trolls often thrive because there's less risk of real consequences either for them or for those enabling them.