Android security, like any computer systems security, is an exact science. If an app has a security issue, that is an objective fact, and someone with appropriate expertise can describe the risks involved with reference to facts about what the app does and how it fits into the workings of Android. So how could a question asking for the facts about what security issues exist in a specific app be too subjective?
I asked a question about what specific security issues exist in a controversial app that had been pulled from the Android market but which some people insist is safe.
Android.stackexchange has a community knowledgable about Android who like answering questions, app-specific questions are on topic here, security has its own tag, and questions of the form "Is X safe?" are common across the stack exchange family. Since I'm no Android security expert, and since after research, I can only get a very rough and incomplete outline of the facts of the issue, this site seemed the obvious place to ask about what the hard facts were.
I was very surprised to see the question closed for being "subjective". Here's the question. (note that I re-wrote it to state and restate explicitly what the focus of the question was. The question itself is the same and you can see the original in edits. I just trimmed background research, context and scene-setting and stated explicitly what kind of facts I was asking for).
Here's the explanation given for closing:
This question is not a good fit to our Q&A format. We expect answers to generally involve facts, references, or specific expertise; this question will likely solicit opinion, debate, arguments, polling, or extended discussion. See the FAQ for guidance on how to improve it.
How is asking about the facts behind a specific security concern not factual and not involving specific expertise?
I've never seen a question of the form "Is X safe?" closed for being subjective on any stack exchange site, ever. For being poorly written or unclear, sure, but never for being inherently subjective. Here are a few examples of such questions from 5 minutes searching, from stack overflow: 1, 2, 3 and from serverfault: 1, 2. Many of these are far more subjective than mine, not giving specific reasons for concern and just ask how secure something is in general. They all got good answers that show expertise and reference facts about the product, app or technique in question.
I don't understand why android.stackexchange should be the only site in the stack exchange family where discussing specific security concerns does not "...involve facts, references, or specific expertise" and "will likely solicit opinion, debate, arguments, polling...". Android security is no less of an exact science than security on any other platform.