HN has a few posts regarding textise.net, but is it legal?

On an older HN post I discovered Textise.net which lets you enter any web address and puts its text-only content on the textise.net website for viewing.

Seems like blatant copyright infringement, but is it? And if it is, how have they not been shut down? I would think that the major commercial media sites would not like what it is doing.

One of a few past HN posts: https://news.ycombinator.com/item?id=25840922