Hello Anton,
You know me for almost 10 years, (besides, you must invite me to the restaurant for this birthday soon. :-)
So you should know that I am consistent in my remarks. On this subject, I just asked this.

Permission photo and avatar no full size please   

I think you should introduce a new permission that allows you to not allow enlargement of photos and avatar in HD popup for non members, it is really a problem, in module and in feed and in cover profil
You will tell me member has not put public visibility, but in my case, so I end up with a home page without members' picture, for a dating site it does not.
Member generally accept miniature, but not full size photo. do you also think about the crooks of crooked photos of the ivory coast, they just steal pictures, it's their job. Thumbnails not usable, full size excellent for them, they will come to get home.
And Google, everyone will end up with his HD photo, you know that even I would not want to? And you ?
He's really finding a way to prevent that without being too restrictive and not seeing anything at all.
Click for popup should display you do not have permission.

This makes no sense, yes I understand what he means, in the mouth of a computer scientist, he said can not see the photo content, but the photo in hd that you can.

So, all you have done about it is fine, apparently just a line in excess. That way he is perfect for me.
I will explain you more by eating around a good meal as soon as I have received your invitation. :-)
Ps: It will be necessary to warn me well in advance because I am afraid of the plane, except if it is moo who pilot, but that, they do not agree often ...