People should definitely lock their accounts if they need to feel safe.
That said, if we have a bunch of people locking their accounts to feel safe, this whole experiment is headed for failure.
Abuse is abuse, even when it's done with righteous intent. If we can't or won't expel the abusers among us, we are just the bird site with a different coat of paint.
Anger exercised against people who hold no power over you is probably anger you shouldn't have exercised.