Because it's valuable for OP to have a copy of what he saw when submitting links. Many sites, especially MSM, go back and edit their pages, so the same URL will show something different from what they originally published. This often occurs after people start calling them out for some blatant lie.
A timestamped archive is proof they put out what you're shown in a post.
Why is it on archive.ph? Is the censorship striking down so hard?
Because it's valuable for OP to have a copy of what he saw when submitting links. Many sites, especially MSM, go back and edit their pages, so the same URL will show something different from what they originally published. This often occurs after people start calling them out for some blatant lie.
A timestamped archive is proof they put out what you're shown in a post.