This post would be improved by adding a sentence explaining what ScrollPods are. I don't mean the technical details that you promise in an upcoming post, but rather anything whatsoever about what it's like to use them.
Taking a knee to lock in an American football victory used to be considered unsportsmanlike, but then the https://en.wikipedia.org/wiki/Miracle_at_the_Meadowlands happened, where the Giants were up 17-12 with 30 seconds left and played normally. They fumbled the ball, the Eagles recovered it and scored a touchdown, the Giants' offensive coordinator was summarily fired and never worked in the NFL again, and ever since, dropping to your knee when it ensures your win is standard, accepted, and even sometimes called the Victory Formation.
Priests will read it and then talk to their congregations about it on Sundays throughout the year, if not explicitly, then in how it shapes their homilies.
The best solution I know of is to get three-link segments of chain and put one on each screw as it goes into the ground. That not only marks the spot, it also gives you a flexible attachment point which is useful in all sorts of situations. (Two links would be pinned in a stationary fashion.)
Biggest problem is it’s a pain in the ass to chop up all that chain, and nobody sells them in pre-cut lengths.
Can't blame unions, considering how easily Europe gets it done. Most likely issue is that in the US, every landowner and minor municipality is empowered to delay and obstruct these projects and thus milk them.