I have been known to get someone to make a copy of a recording for me.
(a) I had previously bought the record (on vinyl) but lost it during one of several house-moves in between. (b) it was no longer available from the original label or distributors. (c) As it happens, the same recording was re-issued on CD recently and I paid up for another copy!
Of course the people who put these things on their websites don't contact the original artist or label. (what do you think they'd say?) They want all the so-called glory for themselves. They don't give a toss whether the original is still available or even whether the artist is alive or dead.