I have noticed over the years that we get a lot of questions that are not information security specific, and are subsequently closed or migrated to a better site. While the migration process isn't a huge deal, it still creates a lot of clutter and moderation that could be avoided if users knew the proper place to ask.
It makes me wonder if the guidelines aren't clear enough. On our help center, it has this quick statement about other possible sites:
Questions on setting up your home PC antivirus may be more appropriate over at superuser.com; and questions on the deeper aspects of cryptography belong on crypto.SE.
Ok, but what about questions for programming with security libraries (Stack Overflow), configuring Kali or setting up GPG (Unix & Linux, Super User), troubleshooting your server's TLS configuration (Server Fault), or reverse engineering a binary (Reverse Engineering Beta)?
While most of these are common sense to a lot of us, someone who is new to Stack Exchange probably won't know, and might think their question is on topic here. The help center doesn't really prohibit those types of questions, even though there are better fits elsewhere.
Compare this to the Crypto Stack Exchange help center. For brevity, I won't copy it all here, but the "I'm confused as to where my question belongs; there are so many sites!" section specifically addresses most common off-topic scenarios. There is even a whole section afterwards explaining Crypto vs. Security SE.
As a result, I propose creating a similar list for the Security SE help center that outlines common off-topic areas, and suggests where the questions may be more appropriate. I don't know the process to change this, but I would hope it would decrease the volume of migrated questions.
Unfortunately, we can't guarantee that people read the help center when starting out. But for those who do, shouldn't we be more clear about what is off topic?