There are some communities with intersecting subjects with superuser.com. For example I could ask this question about volume control in linux at unix community, or this about hotkeys at software recommendations. So how do I choose best variant?
P.S. Second one has been askedasked at software recommendations and it also was asked and answered at ask Ubuntu, one more similar community.
What about such feature like post a question to several communities? Of course asking should choose the most suitable one. But for example my question could been answered on superuser (if it exist a simple solution) or on askUbuntu (is it eist a solution using OS tools) or on softwarerecs (if it exist a good software). By the way the best answer contains recommendation of software but located on askUbuntu. Please write what do you think about such feature.