which would appear to be a violation of their terms:

If someone else might own the copyright to it, don't submit it. Outline is for reading pages that:

* you own the rights to,

* is in the public domain,

* constitutes fair use, or

* you have consent of the copyright holder.

That's not terms of use; it's a feeble attempt to shift any legal issues onto the end user.

It's unlikely to hold up in court; the servers of outline.com and their owners will likely be deemed as creating the unauthorized derived work.

You cannot sue a hyperlink that's floating around in the wild; you cannot prove who created that link.

Thanks for this, pretty useful for when I'm not on my own device.

Same here. It works for paywalls too! I wonder what their business model is though.

Disrupt some shit and duck? :)

If I were to guess; they will start inserting their own content into these filtered pages, after some time. Newly created ones will be nice and clean, but after some months perhaps, mysterious stuff will start creeping in when those URLs are viewed.