It's not the software dev's _fault_ that someone used their tool to hurt another person, but it _is_ the dev's _responsibility_ to consider how their tool might

It's not the software dev's _fault_ that someone used their tool to hurt another person, but it _is_ the dev's _responsibility_ to consider how their tool might be abused and consider whether it's really a societal good to build it. That's kind of the whole point of the original article, narrated by a guy who _ actually feels guilty_ about his role in enabling people like your hypothetical frat boy.