I know you weren't addressing me, but here's my thoughts anyway.
There is no hole in the fixture, you can see it. The fixture should not be touching the wall, there is supposed to be a small gap because a toilet tightened to the wall would crack the tiles. I see nothing that indicates a huge gap, the bottom of the hole is not visible, being blocked by the sealant.
There's no need to leave a camera in place, either. Peeper takes it with them, and someone just gobs some caulk over the hole and thinks nothing of it, but the peeper knows the structural hole is still there and can just open the hole in the caulk again.
They do if it is a replacement and some tiles were damaged while removing the old one. The width of the grout line alone should tell everyone that it was a different style bowl perhaps some of the tile had to be removed just to get the commode that close to the wall. and no one caring what it looked like after it was installed but one large butt on that toilet could cause enough movement for that to happen because nothing was supporting the gap that was that wide. I'm talking about the grout gap. Bad show, for sure, but nothing worth this many pages.
How much plumbing have you done in your life, not had done, but what you have physically done plumbing wise. Double BS on the peep hole idea. We are seeing the item in two dimension. It is impossible to really tell what direction it points in, I say straight down through the gap between the toilet and the wall. Should it be there, no, but it is and it is nothing more then the wrong part and shoddy workmanship.
I see no evidence of a gap, just too much sealant. A significant gap would result in sagging. Even if there was significant gap it would have absolutely nothing to do with the hole that is above the fixture.
The evidence of the gap is shown clearly by the size of the gap showing in the hole.
What gap shown in the hole? There is sealant obscuring any view of the distance between the tile and fixture.
You're talking about someone doing it as work.. and not the situations like a restroom being damaged or vandalized.. or someone trying to do work over top of already compromised work. There is so much that could have happend here that you can't just dismiss it as "well this is how it SHOULD be done". You're right, but we don't know if that's was WAS done.
Your eyesight must be better than mine. What sealant are you talking about? The gap is the distance from the front of the hole to the back and it completely corresponds with the line up of the rest of the grout. You are still assuming that the hole is in the wall and I am saying that it is in the grouting only because the toilet was either designed in such a way that it didn't fit properly or was installed incorrectly. Not a good thing but hardly a high priority thing. It comes under the heading of "When you are up to you butt in Alligators, it is tough to remember that your original intention was to drain the swamp".
What you keep ignoring is that there are patterns to how materials and assemblies fail. Failure is a process. Be it sloppy work or intentional damage. There are patterns and those patterns inform determining and correcting the problem.
How many software developers does it take to change a light bulb?
The hole is clearly in the wall as is very clearly illustrated when the poster wads toilet paper into the hole in the second video. A minimum ¾” gap between the wall and fixture would be incredibly obvious, would still require a coincidental hole in the wall to see beyond, and would likely not have a properly sealed coupling resulting in used toilet water leaking onto the floor.
