LOL - that's miles away from real 7" girth - not even remotely close...
Since I'm about to go on a rant which does nothing to further the thread's purpose, attached are some pics of damn thick white ones I've found over the years.
I consider myself quite skilled on judging sizes from photos and videos, from years and years of doing so online and also plenty of experience seeing the real thing in the form of many large to huge dildos I've owned for years, for which I can obviously verify their exact dimensions. When viewing online I take careful consideration of things like the fisheye lens effect, perspective, angles, lighting, the light/dark (contrast) effect, reference objects or body parts or lack of them, proportionality of objects and of body parts, parallax, and so on.
I'll add in the thousands of hours of experience with my own cock, which while "only" 9x6.25, is a reference to which I have compared many times things like a woman's hands wrapped around it, her mouth, face, her forearm, and so on. I have been with women of all shapes and sizes, and I know how petite a woman has to be for her hands (proportionate to her body size) to not be able to fully wrap around my erect shaft, and accordingly the same thing for a woman's hands or my hands to wrap around mine, a dildo bigger than mine, and so on.
So with all that said, in my estimation, Johnny Dark is most certainly in the range of 10x7, possibly a smidgen less. He's cock is a fucking meat cannon (his personality leaves much to be desired but that's not relevant), easily in the class of the cocks in the videos posted by the OP at the beginning of this thread.
To also say that White Pony isn't at least 10x7 is even more ludicrous.
I was first made aware of him by a good friend of mine, who was a size queen high-end escort who fucked hundreds of the biggest cocks on the planet, and she would estimate him to be at least 7.5" thick.
I have noticed people on this website in general downgrade erection sizes below what some of them actually are, at the high end. Yes, there are vast numbers of men who exaggerate their size by an inch or two, but it seems like people overreact to that and then zealously apply their skepticism to the point of refusing to believe the evidence before them of a real cock in the range of 10x7 or 12x7.75. Such is the prejudice of the human race that even those vaunted to be the most objective- scientists- will die before letting go of a theory they were long comfortable with.
I am fully aware that most porn star's claims are full of shit, that many male performers are shorter than average for the proportionality effect and many female pornstars are substantially petite. That said, once I've seen a guy perform with several different women, I have a pretty accurate determination of his size. Dark is 10x7 or just slightly under.