Handler/Function with same name

[Mark Smith]

I have a library stack with some commonly used stuff in it.

I have, in it's script:

on trim @aString
    put word 1 to -1 of aString into aString
end trim

AND:

function trim aString
     return word 1 to -1 of aString
end trim

To my surprise, this works perfectly well, so I can do:
trim myString
or:
get trim(myString)

depending on the context as to which is more convenient.

But I wonder if anyone knows of a good reason why one shouldn't have  
a function and a handler with the same name?

Mark