While some of the men that pose as women incorporate themselves into the threads, chat, PMs and post in the galleries, the ones that 100% of the time throw up the red flag to me are the ones that post a handful of enticing pictures in their gallery, yet NEVER make a post. That always makes me a bit suspicious. If they do have a posting history, it's usually 1 or 2 to the effect of:
"I'm new and love big cock ::smile:: My friend told me about this site and I love it already...so much so that I posted a few pics of me in my gallery. Let me know what you think, big boys!"
This isn't to say that all of these types of profiles are men posing as women. Some really are of that person (though highly unlikely IMO). Some are men, as stated before. But keep in mind that some of them are actually women, just not the woman that they have posted in their gallery.
Regardless of what type of person that's actually behind the created profile, I think it's safe to assume that they're doing it to get more attention. Perhaps it's a female that doesn't get a lot of attention in her everyday life and feels that she can create a re-invented 'her' to fulfill what she perceives she's lacking in social interaction otherwise. Maybe it's a gay male that feels he has a better chance of getting the prize - attention from a well hung, straight guy that might not otherwise give him the time of day. Maybe it's someone, male or female, just having fun. Who knows?
I feel NIC said it best - "Respect everyone. Trust no one."
I mean, c'mon. We all have been exposed to the web for some time now. Some more than others. We've all heard of horror stories or have been duped ourselves (myself included). But we have to rely on our own intuition - here, and anywhere else we might wander on the web. I mean no disrespect to the true women of LPSG with this statement as there are countless stunning and sexy women, but as we've all heard many times, if it seems too good to be true, it probably is.