I personally think it's a really cool question. It's well written, it explores an area of the language that may not be as well understood as it could be, and it has the potential to give insight into the language. That having been said, it's not a good question for Stack Overflow.
As was sussed out by a highly related question, the problem with your question is that it's idle curiousity.
The criteria for asking a question include (From the FAQ):
- a specific programming problem
- practical, answerable problems that are unique to the programming profession
and then later (emphasis added):
You should only ask practical, answerable questions based on actual problems that you face.
If your question doesn't address an actual problem you face, it's probably not going to stay open. There are plenty of places to ask questions about why a language designer decided to do things a certain way, but Stack Overflow is not and should not be one of them.
Why, you ask?
Stack Overflow is a repository for useful programming knowledge whose purpose is to help people solve the everyday problems they face.
It is not a "Quora" or a "Reddit" or a "Hacker News" or even a "Slant.co". It is not a place just talk about languages. It's a place for solving problems.
If you can rephrase the question in such a way that there's an actual problem for us to solve, then that question would undoubtedly be on topic and constructive. However, the question as written is not.
To put it succinctly: Stack Overflow is not a hammer, and every question about programming is not a nail.
Edit: That question was migrated to Programmers after a very helpful flag. Since I can't show you the flag itself, I'll paraphrase it, with what made the flag helpful:
Please migrate this to Programmers.SE. It is on topic and is considered constructive there (see this P.SE Meta question for more detail): Is programming history on topic?
That is how you flag for migration. Most of the time, we're not going to migrate unless:
- It's clear from our experience that the question is on topic for the site it should be migrated to (this is harder than you think).
- A moderator from that site flags the question and asks us to migrate it to their site.
- Someone provides us with an authoritative response as to why it's on topic there (usually by referencing that site's meta).