If a feature is not implemented, there is no way to waste time on trying it as there will be no button or links to attempt it (baring the weapons pages in the cockpit/position actions sections). Features that are implemented, but currently not working correctly due to a bug are usually fixed fairly quickly.
As Evan said having a quick look through the bug base may be helpful, but generally any issues will be fixed within the week. Exceptions to this is when the main coder responsible for an area of code becomes unavailable for a period of time (such as with the recent production bugs I believe) and the other coders have to run up some speed to understand it as well as the orgininal coder. Or at least that is what I have gathered from their talks.