That doesn't strike you as a really bad idea? Quite apart from the maintenance nightmare, consider what happens if you need to include a backslash in a string.

Read the paper... It also proposes limiting all identifiers to one character, using Wingdings as variables, and overloading whitespace as an operator. ;)

You've not used APL then ;-)

Nesting comments is always a pain in the arse, and \\ would make it unnecessary.

Have you noticed the publication date, in the abstract?