We have many questions on the topic of regulatory certification which have been allowed to stay open and flourish.
We also have had some that are closed because of narrow scope, and others that don't seem to be too different from questions that aren't closed.
To me, questions about regulatory certification are certainly on-topic, since it's a subject that just about everyone who will be releasing a product to the global market will need to have some knowledge about (be it choosing recognized devices to provide power, or going through a full-blown product certification).
Also, since we're in a globalized world, it really seems unfair to me to say "questions about UL and FCC are OK, but Korean certification is off topic." Anyone who wishes to sell worldwide is going to need those regional certifications. How about CSA? TUV? VDE? NOM? Is this a worldwide site or American-only?
Let's try and reach a consensus on the acceptability and scope of regulatory questions.