case sensitivity, my 0.02 worth

Here's what I think.

I've had enough trouble trying to convince n00bs that e-mail addresses 
are not case-sensitive, which, at least so far, remains true.

I see absolutely no reason or value to making commands, directory paths, 
file names, etc.  case-sensitive.  It may be "cute" but it invariably 
leads to confusion even within an OS that supports sensitivity. 
Frankly, I'd be happier if R was not case-senstive either.  Maybe it's 
just me, but I don't have the patience to recall whether to type

 >>getNativeSymbolInfo and Extract.data.frame,  or

 >>Getnativesymbolinfo and extract.Data.Frame, or some other combination.

(relax -- I'm just picking a couple example commands w/ capital letters 
in them)

Then again, if it were up to me, I'd ban spaces in file and directory 
names, too.  ~_^

Carl