Recently I tagged my question about the difference between soup and stew and I used the tag food-differences. As you can see in the edit, that tag was removed. I then went into the tag to see if there was a tag wiki and there wasn't. So I was wondering if someone can clear up exactly how this tag should be used, or rather, why I used it improperly?
It's a meta tag that was once officiously slapped on a bunch of questions at the same time by an ex-member. At the time, there was a mess of hundreds of bad tags to clean up, so we didn't get around to all of them; this was one of the lower-priority ones.
There is no appropriate use of this tag. Please don't use it. The last instance of its use was over a year ago; if you see it on any questions on the front page, please remove it.
As a general rule of thumb and suggestion for all readers: Tags are intended to identify a particular area of expertise or specialization, i.e. a specific technique, food, cuisine, etc. If you can't look at a tag and honestly say "somebody's probably written a book about this" then it shouldn't exist as a tag.
(This goes for other meta tags as well like [comparisons], [classification], [hot], etc., many of which are still unfortunately in our system.)