Do the sources even matter? I don't know how many articles I've read in the past that have had some very questionable "facts" so I check the source link and it's a dead link.
In practice dead links should be and are mostly converted to web.archive.org links. It's not a problem for them to be dead, they just have to exist somewhere and the original source should be classified as reputable. It's hard.
In practice dead links should be and are mostly converted to web.archive.org links. It's not a problem for them to be dead, they just have to exist somewhere and the original source should be classified as reputable. It's hard.