If the Bitcoin Classic was going to use 95% then I wouldn't have a problem but unfortunately they have stated that they are going to enforce their new rules at 75%.

The reason that this is so dangerous is that for certain there will be an equivalent of NoXT appearing (meaning that they don't actually have 75% of nodes but maybe not even 50%).

So if you have enough resources then you create a few thousand nodes (not too hard to believe possible) then prepare to sell all your BTC on the fork and once you have removed the fiat you "switch back" and then you sell it all again.