>>34892When it comes to art posted on Pixiv/danbooru/etc: the artist could remove it/ask for the reuploaded images to be taken down at any given time, so if I come across an art style I like I download everything I like. One time an artist I liked was kind enough to say he was removing everything and gave everyone enough time to save what they wanted, but most of the time that sort of thing doesn't happen.
Then there's a lot of good or funny content which is posted here. Can't help but save it. It isn't as "necessary" as it used to be as some archives save images, but those tend to come and go.
