I remember an app that had a recycling bin so when you added a file… someone else got it so they could “re-use it”.

Fun and similarly random idea.

I thought something similar, but it said "swap" so I was wondering what we were swapping, and I thought "I give you a commandline window onto my box, and you give me a commandline window onto your box, and we see who can create more mischief/mayhem most quickly"

but then I came up with a cool "network war" game: there's a shared window on our two boxes over the net (one window on your box, one window on my box) but inside the window are bash cmdlines for both of our boxes. Whatever commands you type get executed on both machines; whatever commands I type get executed by both shells too... stdout outputs are intermingled? atomic interspersed? it should be confusing but not impossibly so

I also thought this. Collectively, asking HN, how would you implement something like "for fun and profit"? (Without making it an RCE machine)

It's a socially interesting idea, but what would be the use case (provided it can be achieved securely and without compromising the host)?

I thought the same, and then thought "the most efficient goatse spreader ever".

:-) I also thought the same.

me too, but was pleasantly surprised with some of the window views!

Same!