Allows the use of part of the language keywords?

[Walter Bright via Digitalmars-d]

On 8/27/2016 6:01 AM, Timon Gehr wrote:
> then not-entirely-trivial disambiguation has to be added to the parser. There's
> no ambiguity for the example in the OP though.

It also:

1. mucks with the usability of syntax highlighting, which is often based merely 
on tokens.
2. makes it potentially much more difficult to add features to the language, 
which is often done by finding new uses for the same keywords
3. is just plain confusing to the person learning the language
4. makes correctly diagnosing syntactic errors harder

There are a million words in the english language. Having a handful of reserved 
words should not be a burden.