Don’t ask Hacker News for legal advice. If you really want to know the answer, ask a lawyer.
Just release the code somewhere, anonymously, it isn't yours anyway.
The thing is, at least in Germany, lawyers are required to carry a liability insurance and in the case th advice ends up being really bad you can hold their insurance accountable.
Because truly the answer boils down to "it depends" and many people will take it many different ways and not be "wrong". Publishing anonymously is a good choice, publishing publically and complying with a removal order is a good choice, not publishing is a good choice.
"Good" here being somewhat sound in that it likely wont cause the person publishing a huge life changing issue.
"Get some small amount of bitcoin and pay a VPS hosting provider in Moldova for a year's service on a $15-per-month equivalent KVM VM and put what you know on there anonymously as static content, then publish the link here."
Not that a sufficiently dedicated nation state federal crime agency or intelligence apparatus probably couldn't trace back to you, but it raises the bar for something like random civil lawsuits from piano companies.
> jumps through a lot of inconvenient hoops to "anonymously" publish code
Something doesn't add up there.