Sexual Identity and the Online World

Reading this article today on how two straight men have apparently been reverse outed after it turns out that they were not the lesbians they claimed to be online.  I find so much of this article to be offensive.
First of all, I hate the comments from various people that no one would listen to a white man.  It's such a whiny thing to say.  White men always have space in the world to talk to the point where they dominate the conversation.  Marginalized people wanting a space to talk to one another and about the issues important to them is a perfectly legitimate desire. 
The article also ignores whether or not anyone would need to hear the views of these two men.  Is there some reason I should want to hear MacMaster observations of Syria?  Has he been to Syria?  Is he an expert on the Middle East?  (It mentions he was in graduate school, which could indicate he has some intellectual background to talk about things, but otherwise, who knows.) 
What really frustrates me about this whole thing is that when actual lesbians, especially those from a nonWestern country do want to talk about these issues on the Internet, people will dismiss them as potentially frauds.