Just now I'm a newbie to editing Wiki and my first effort was driven by something I saw on BBC TV. What I saw did not fit with something I thought was a given fact: that the word 'yuppie' was invented in the eighties. Simple fact that there was TV footage from 1969 that to my mind belied the accepted perception, I would be happy to have seen a challenge to my assertion based upon reasonable fact or argument. However my Wiki change was seemingly removed by another editor on the basis that could not find the reference to which I referred.