Note, don't actually try this as it will lock up Hyper and you'll have to force quit it.

The benefits of your terminal emulator allocating a new DOM element in a web browser for every line of output. You can also watch Hyper's memory use climb up at a constant rate

It doesn't have to allocate a new DOM element for every line. It could recycle DOM elements as the terminal grows. This is a method that some JS libraries use, seems like Hyper probably doesn't.

what the... is that supposed to be piped into cli programs that don't have a -y switch?

Yes.

I have a program at work that does something like

Do you want to remove x from y? [y/n]

Do you want to remove z from y? [y/n]

Do you want to remove a from y? [y/n]

etc. etc, 100s of times. yes is a lifesaver.

I also like how it's used as an experiment for basic optimization: https://www.reddit.com/r/rust/comments/4wde08/optimising_yes...

4.5 GB/s of 'y'. Hilarious.

yes

Yes, that's exactly what it's for.