Except it is a fact, or at the very least a necessary logical conclusion.
Fact 1: The V-man comment was the first time people began to discuss what gender Vaarsuvius was.
Fact 2: The Giant was not making the gender ambiguous until people started questioning it after that strip was printed.
Fact 3: The usage of "V-man" when he was -not- trying to be misleading is a very decisively masculine term (as the reactions in the thread show)
Conclusion: V was initially intended to be male.
If you wish to debate this, you better come at me with more than speculation and circumstantial evidence :)