I love that charahub gives a nice long list of questions, but sometimes -- just as some questions are not relevant and can be hidden -- there are different questions I'd like to add to their profiles that might be relevant only to their universe or something. It would be nice to have all that information in one place. The "extra" section isn't really a good space for that.
Basically, I think it would be cool to be able to add your own question and answer for your own characters! I would even be happy if it was only added to the one character, because I don't mind terribly doing it over and over (though it would of course be more convenient if it was similar to the way hidden questions work, where it's hidden [or in this case, present] unless otherwise noted).