[inigyou]

There's no such thing as refusing to unpublish, not if you want to avoid prison time.

Package contains child porn, what now?

[mook]

I think it's implied to be refusing to unpublish at the request of the author; unpublishing due to outside forces is probably inevitable. If some unsupportable content got introduced in a new version (e.g. xz), at least the historical versions would be kept.

That of course brings in questions of cost, trust, and governance, so there's definitely a trade-off…