This is also one of the biggest reasons for me why i stopped hosting things for strangers. My country is insanely backwards with when it comes to internet law. For example Mastodon (and others) caches media and text-contents of posts from remote instances on your own server, you are now distributing - you don’t even need to directly follow someone who posts media (attachments) or even just links to a website thats hosts unlawful stuff and you’re on the hook and considered just as responsible as the original poster. Insanity.
I was wondering if the extra layer of whatever filesystem the swap file is created on creates overhead? Also i think some filesystems that do COW can negatively impact performance or something? Kind of remember reading that.