Divsion by Complex Zero yields Obscure Error Message

[rdbyk]

--> 0+0*%i
 ans  =

   0.  


--> ans/ans
Operator / : Error 10 not yet managed.
 ans  =

   Nan + Nani

This seems to just another facet of the already encountered issue #303. Anyway, throwing an error or warning mesage is not that bad, but what does Operator / : Error 10 not yet managed try to tell the user? Is the result wrong? If yes, why not raising a proper run-time error that aborts the execution ...