I've started to get these white specks all over the screen on my 2012 rMBP. I only use the small microfibre cloth that came with my iMac a few years ago to wipe marks away and only rub it gently. I am a bit OCD and do clean marks off regularly but only in small circular motions. I haven't used any LCD cleaner or fluids, just the cloth. Is this a common issue? I've searched the forums a bit but not found much. Going to take it to the genius bar when I can but just wanted to hear your opinion on it.