I think this is the main concern here. The link for the source isn't available anymore, therefore the claim stands without anyone to be able to honestly argue a

I think this is the main concern here. The link for the source isn't available anymore, therefore the claim stands without anyone to be able to honestly argue against it. Should someone with poor moral and enough reach wanted to have something removed legally from wikipedia or any other such website, they would 'just' have to take down any other online source. In the age of the internet and knowledge being available 24h, this is concerning.