The page that shows the details of a creq and the options for it is not only still accessible (by manipulating the URL) after a creq was granted or denied, it's also possible to properly grant it if it was denied before.
I wouldn't really say that this couldn't be called a feature... if two mods have the same creq open, it'll be granted as soon as one mod grants it, even if the other one denies it.
... but I guess that'll (almost) never happen anyway.
CReqs can still be handled even after being granted [tracke]
Moderator: AniDB