I also say no.
I mean, this game is supposed to be achieved. ur supposed to do stuff.
if this was implemented, some rich guy could just donate $100 for 10000 donation points...and get stuff
i think donation points should be used for titles/colorized names/avatar/blog etc, things that don't give any help in the actual game
or things like +1 forest fight or free inn stays which don't give MUCH help
kyuubi? i dont think so...that kind of ruins the game...rich people would just take over etc (i mean rich in real life...)
things in the game should be earned through work. NOT bought with real money.
take a look at runescape's policy
about "real world trading"