Board Thread:The Panopticon/@comment-29078-20150209172154/@comment-1432718-20150210023148

I'm against it. I don't see that it's a necessary category. In addition, if we allow this, then we'd have people asking for Category:Planets visited by Sarah Jane Smith, Category:Planets visited by the Brigadier, and so on and so on. Our category system is already quite complicated and cumbersome. Our time as editors is better spent on creating and expanding articles (as you've been doing for example), rather than further organizing the pages we already have.

That being said, I appreciate that you brought the subject up here first, instead of just creating the categories, to allow for discussion. I'm sure there are several users who will disagree with me.