One Stack Exchange feature which is significantly underutilized here at SF is tag warnings. These pop up when a user enters a tag into their question and can provide guidance on how to use the tag or ask a better question in relation to that tag.

For VirtualBox, in particular, as we still get plenty of inappropriate questions about it, I propose the following tag warning be added:

Questions about personal and development use of VirtualBox are off-topic at Server Fault. You may be able to get help at Super User.