The difference between mining on windows and linus is known. I do not think pool mining will make this any different because the mining will still be done on the local machine.
Perhaps the difference will decrease once the Devs have rewritten the Nimiq code to Ruby, but that is still far away.
What is the significance of the mempool rising: *people obtaining more Bitcoin (exchanges, locabitcoins) *people bringing Bitcoin to exchanges to dump *other things not mentioned
At least all this hammering of the price leads to (the chance on) pressing a stronger bottom. Better bounce, better ensuing rally, better chances of following a H2 2013 scenario.