Yes, new CGI:: is the exact same as CGI->new, in terms of the interpreter.

However, how do you explain to someone that every single method call you make uses the '->' syntax ... except for the constructor, which doesn't, but instead starts using this (seemingly) random '::' syntax. This isn't the most maintainable concept. What happens if you forget to put the second ':'? The difference between ':' and ';' isn't entirely obvious to a casual glance. In addition, as ':' and ';' are on the same key, mistyping problems are multiplied.

Essentially, what this boils down to is "Wow, that's a neat way of doing things. I didn't know I could do that. But, why on earth would I want to obfuscate my production code?"

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We are the carpenters and bricklayers of the Information Age.

Don't go borrowing trouble. For programmers, this means Worry only about what you need to implement.