Because they are more clever than you.

race condition … unsafe… memory corruption of the previous/next pointers… crash.

I expected this for long enough. I am satisfied. Good. I wait for more.

No, it shouldn’t. The same way as factory machines don’t pay it.

No idea what this program is for, but from the practical use point of view, the example from the image is horrendous: 35x11 is calculated trivially as 35x10+35. Not that craziness.

I’m a simple man: bigger numbers mean newer version. And that’s enough for me :)

That would be a waste of a perfectly good bullet. A club will suffice.