There are many meta questions related to the various tags. I don't understand why they're useful in the first place.
I see two situations: 1. the question author uses a descriptive title and so the tags are essentially irrelevant; or 2. the question author uses a poor title, "Why does this happen?" springs to mind, and then even with good tags, there's still no good way to know what the question is about.
So clearly the point of the tags isn't to tell you what the question is about, but a way to look at all questions with a specific tag. I feel like search engines have solved this problem (none of them look at the keywords meta tag any longer). Why not leverage this power and simply omit the tags? No more worrying if a question should be tagged with
packagename or any other tag.
I'm willing to entertain the idea that I'm missing some legitimate use for tags. Feel free to enlighten me (and point out how foolish I am for missing the blindingly obvious).