This is the dedicated realm in SE to post questions about reviewing one's code. But this is not a SE site that has many members in comparison to SO. The possibility to have this code review helped with is much higher on SO than it is on Code Review.
So I want to know, if it would be bad manners, if I posted the same question here and in SO?
No, it's not ok. Yes, it would be bad manners. On top of that, it would be quite an accomplishment to phrase a question such that it's on-topic and well-received both here and on Stack Overflow.
Please see our FAQ on the differences.
I understand your frustration. You have 3 questions on the site, some of them quite old, yet no answers. Perhaps our FAQ on getting the best value out of Code Review can help you.
The on-topic help center for Code Review can be found here, for Stack Overflow here. The Stack Exchange-wide FAQ (for all SE sites) on cross-posting can be found here.
Just because a question is said to have "working code" and seems to be on-topic on Code Review, doesn't mean that it is automatically off-topic for Stack Overflow. There are many questions that are on-topic on both sites. The Stack Overflow Help Center doesn't say that code reviews are explicitly off-topic there [...]
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