I just noticed that [this question](https://arduino.stackexchange.com/q/748/470) has been migrated (two hours ago) from electrical engineering S.E. to the Arduino S.E.

Can someone please explain the reasoning behind that decision when 

* The question had already received a reply in electrical engineering S.E. (two days ago)
* There is a general S.E. policy to [NOT migrate](https://softwareengineering.meta.stackexchange.com/a/5780) questions in beta sites
* The question is on topic in electrical engineering S.E.