I was reading the Tennant_Love reaction post to this news, because I was curious about the fan reaction. The consensus was that this woman was definitely crazy, but the reason they'd determined her to be crazy wasn't because she was writing sci-fi Hamlet Mary Sue fic -- it was that she wanted to show it to David Tennant. So as long as you don't want David Tennant to see your sci-fi Mary Sue fic, you're doing just fine. I was glad to discover exactly where the line was drawn.