I don't think its as black and white as that annefield. For example when drunken fans forced their way through in athens 2007 and created chaos with many fans with genuine tickets not getting entrance to the game or in some cases being attacked for their tickets. Had their been deaths would that have been the fault of fans or the authorities for not organising things. The answer is probably a bit of both. We all have a responsibility and standing up or throwing a coin is the road to worse things.
Don't think i can agree Stanley, drunken fans forcing their way through in athens...causing possible deaths , or throwing a coin are both far cry's from standing up in an all seat stadium, much as I dislike that practice, as much for my aging legs as for the lack of courtesy to those behind.
However if standing was the cause of all you seem to ascribe to it none of us would've survived long enough to see an all seater stadium. I have stood in a stadium in Dublin many times over the years with well in excess of 90,000 fans some with toddlers in arms, there wasn't even crush barriers and with very few stewards and in all those years there was never a problem, no Stanley standing in Stadiums has not led to any of the problems mentioned in this thread, and should not be equated or associated with Hillsborough, coin throwing, or the actions of drunken fans.