all you know is that X amount of bitcoin has moved from address1 to address2. everything else (such as this being a whale and not being Bitstamp itself) is purely your imagination.

that is a bullshit website created to only get traffic by posting nonsense about large transactions.

altcoins can only keep up with bitcoin if and only if they start having real world usages, otherwise as long as they are purely for trading purposes they won't even survive in long run let alone keep up!