I just realized something.

If, in “Pinkie Apple Pie”, Pinkie does turn out to have some familial relationship to Applejack, someone will have to go through the archives and tag every last “ApplePie”-tagged picture as incest. (As far as I know, aliases only work with pictures made after the fact.)
 
All two hundred and forty eight of them.
 
Have fun! :D

Curses, foiled again.