I've seen edit flags pop up for a tag-wiki from time to time. While I haven't been working on them myself, what I see does raise questions. I've seen some nice, brief descriptions and I've seen some extremely long ones. I've also seen some that, from the tone, sound like a cut and paste job from the Font-Of-All-Wisdom - er, I mean, from the Wikipedia.
Can someone provide links to examples of what a good tag-wiki should look like?
Do we want long and highly descriptive entries? For instance, how much of a biography do we want for an author? Or is just enough to identify the author and what is unique about them appropriate? And do we want C&P jobs form the Wikipedia, or our own information so we're not just copying info from elsewhere? (And that also raises the question of whether or not a very wordy text from C&P is preferable to an empty tag.)
What type of content for a tag-wiki is best for scifi.stackexchange.com?