>>/10116/
> So far haven't seen any 429s with a 400 second sleep between requests.
Saw one:
https://web.archive.org/save/_embed/https://derpibooru.org/ponies/ms%20harshwhinny/harshwhinny-trot-right.gif
> HTTP request sent, awaiting response... 429 TOO MANY REQUESTS

 >>/10113/
> those URLs to those files are unique and only exist in that website
Other reason: since they are used as a software thing, those paths must continue to point to non-404 URLs/files for that web software to work in the future.

 >>/9925/
> https://iv.melmac.space/watch?v=98ViMH14Ibg
now says "This video has been removed by the uploader"

Motherfucker, I was just about to download that.

Image from
https://external-content.duckduckgo.com/iu/?u=http://image.blingee.com/images19/content/output/000/000/000/7a2/760211635_177053.gif