This is the issue I have with everyone running agents writ large. Will Muse do people harm? Eh, maybe through some sort of bug because software has bugs and software bugs have hurt (and even killed!) people in the past. Those are the edge cases though.

Will malicious people take advantage of Muse? Now you're talking. Muse is functioning like the world's most open ended API that people are running without having any idea what it does. You're inviting other people to run it so that they can do good things for you. Doordash use my API (Muse) to send me food! Random stranger use my API to do something good for me! Random stranger wants to do something bad? Well the API is designed to do that. Hopefully it does it well but when it's people vs. API, people have a track record (especially when incentivized by money) of doing pretty well.