But this is about the first systems? I tend to tell people, the fourth try usually sticks.

The first is too ambitious and ends in an unmaintainable pile around a good core idea.

The second tries to "get everything right" and suffers second system syndrome.

The third gets it right but now for a bunch of central business needs. You learned after all. It is good exactly because it does not try to get _everything_ right like the second did.

The fourth patches up some more features to scoop up B and C prios and calls it a day.

Sometimes, often in BigCorp: Creators move on and it will slowly deteriorate from being maintenaned...