Oh look it's on the internet, therefore it must be true

I typed in "Down Under" by Men At Work. Yep. Sure enough. It lists "Kookaburra" by Marion Sinclair as a sample, which is completely false. Greg Ham played the flute on Down Under.
There were no samples. Debatable whether Greg Ham plagiarised those notes, but it was definitely him playing it.
David Bowie - "Young Americans" - the backing vocalists sing "I heard the news today oh boy" as a homage to John Lennon's "I read the news today oh boy"
This is not sampling.
Sweet - "Ballroom Blitz" - a blatant ripoff/reappropriation of the opening to "Let's Stomp", but not a sample. There are quite literally hundreds of thousands of examples of artists borrowing bits and pieces from other artists. If they're performing the music themselves, then it's stealing/plagiarising/whatever, but it ain't sampling.
Sex Pistols - "God Save The Queen" - this is probably the funniest claim of sampling on the playlist. The moron who submitted that entry to Whosampled.com reckons they've sampled the hook/riff. Bollocks!!! Not even close...
And it's not a sample! Steve Jones played guitar on that track. They didn't use a loop of Link Wray's guitar riff.