It's because some private groups have actual, in real life meetings and the last thing we want at these parties are dudes we know nothing about. Who wants a stranger who might be a super creep at their house? I know I don't!
Maybe link your blog on here to your outside blog, if that's your thing
I understand your reasoning CZ but there are other ways to get to know people. Things like Facebook, and twitter, both of which are linked on my profile. Or here's a novel concept..... Talk to me!! I am hesitant to believe that everything that people write in a blog is the truth, for all you know I might just write what it is that you want to see and not anything factual about myself.