But collecting the wall post in the first place, which was not necessary for any party, may in fact be illegal under this law. It says specifically that compan

But collecting the wall post in the first place, which was not necessary for any party, may in fact be illegal under this law. It says specifically that companies are to collect "the minimum amount of information necessary". If I put a box in front of you and encourage you to input highly personal data, such as what you had for lunch, who you voted for, what you're doing at work today, or how you're feeling today...am I not actively violating this law? There's at least an argument to be made that I am.