There actually is an ice field on the Eiger Nordwand that is called "White Spider" , which might be the motivation behind it.
Much easier (and safer) would be to find n characters or words in strings which, when replaced with another one, don't change the program's behavior or misguide the user - documentation, menu labels, error messages and so on. This way you can even include a n-bit identifier to identify the copyright violator.
I think it is somewhere in https://www.youtube.com/watch?v=w5_kWzUahQU
https://outline.com/rRfCTV actually has some content.
For a long time the title of the site used to be in the sticky header, and the eye logo would occasionally blink. It was incredibly distracting and I'd lose my place while reading every time it did. Perhaps they were excited to introduce motion into their design, something not possible in traditional graphic design, but maybe they didn't know how insanely primed our vision is to focus on motion at the expense of everything else.
Mercifully, they've since removed it.