Most conspiracy theories are victimless. But Alex Jones' about Sandy Hook and Sean Hannity's about Seth Rich are incredibly cruel, magnifying the suffering of people who endured one of the worst things imaginable. Just a shitty, shitty thing to do.
Sure. Though conspiracy theories often provide believes with a sort of comfort, making "sense" of a hopelessly complicated world. By "victimless" I meant they don't harm 3rd parties.