Yeah, in my city I also stumble across these stones. One day, on my way of getting groceries, I was quite frankly shocked by the frequency of the stolpersteine.
I am thankful that these exists and getting reminded now and then is, at least for me, really important and outline in some kind of tiny fraction, how many families suffered the same fate.
I remember in my school days we all used Windows, but the teacher/admin administration software, the school bought was pretty cheap.
The administration tool allowed teachers to stop students from using for example the mouse or keyboard, was written in Java and was installed on all computers as a service.
My favorite part was, that the installation setup of the whole setup was laying around on a random network drive. Being naught little script kiddos we started to dump the code an voilà no authentication or checks who is actually sending the commands. This resulted practically us, locking the teachers and even the admins out.
I am thankful that these exists and getting reminded now and then is, at least for me, really important and outline in some kind of tiny fraction, how many families suffered the same fate.