Some questions that are fit to ask here are not fit on askubuntu, but the other way around should always be ok. But is it?
As a general guideline across all Stack Exchange sites, cross-posting is generally frowned upon, especially if its a copy & paste job. There are exceptions, e.g., both Ask Ubuntu and us probably have a question about how to add a static route—but Ask Ubuntu probably focuses exclusively on using Network Manager's GUI, whereas we might talk about files in
If you want to know, what's the Ubuntu way to do X?, ask on Ask Ubuntu. Otherwise, ask here.
You may also want to consider the different communities when deciding where to ask. E.g., if you look at Ask Ubuntu's How do I save files edited with vim?, there is a comment suggesting try gedit instead. That's probably a good suggestion, assuming some random Ubuntu user just ran across a howto somewhere which said to use vim. You'd not get that here...
See also the related questions in the right-hand sidebar.
My personal opinion on cross-posting is that you should be explicit about it and say, "I also posted this question here" and provide a link. This way:
- A1: People will not end up wasting their time typing out an answer you already got somewhere else.
- If the community or admin do not appreciate cross-posting, they can be honest because you have been honest. This will prevent abuse of the possibility; otherwise some people will post a question everywhere they possibly can.
If you don't do that and someone notices -- which happens surprisingly often -- then your post should be pulled or publicly flagged as a cross-post. Again, just a personal opinion.
In my long involvement with Usenet, cross-posting was very harshly discouraged. Cross-posting just leads to conflicting/wrong answers published several times, and discussions diffuse. Also, if OP isn't able to locate the right forum for the question, they don't understand their problem well enough. Or the forum's theme wasn't clearly defined.