"too broad", doesn't mean off-topic, so there could not be by-default suggestion for migration.
When a question is closed as too-broad, that generally means one, or combination of these reasons:
- multiple questions are asked in the same post
- splitting it to multiple posts (maybe with link to each other) may solve the problem
- there is no appropriate research behind the question (e.g. asking for a definition of TCP)
- searching the internet might solve your problem. Even if it can't solve your problem, you get some basic idea and can improve your post buy asking a more specific question
- expecting the community to do someone's job.
- Most frequently people ask for macros to be written (please give me a macro which ...). It's simply off-topic here, if somebody can't write macro, then need to hire a professional to do it.
- The topic is not suitable to be discussed in a Q&A site like Superuser.
- I see your question Is this a complete local backup solution definition? has been recently closed as off-topic. It mainly falls into this category. It is too broad because you ask multiple questions, touch a very broad topic, it also has some subjectivity and software recommendation in it.
- Maybe you can discuss this better in a forum, or staying in Superuser, look for a chat room.
- not enough details are included to understand situation / be able to find the right solution.