yeah - that happened a lot i'm sure.
probably about as often as straight soldiers lied about being gay so they could get out of the military.
regardless, you're making a pretty good argument for closing off that loophole and allowing gays to serve.
I remember back in abou 80, I was in a command where they decided to send a lot of young women from boot camp and A school to build the command up (aviation training command). Well, South TX is not exactly a nice place and many of the women decided that getting pregnant was the way to get out quickly (this is when getting out when pregnant was an option). Easiest way to solve that problem.....close that option out.
What spoonman inadvertently pointed out is that by getting rid of DADT, you close the option (very, very rarely used) of getting out easily if you declare yourself gay. BTW...under DADT, it was always the command's option. I have a friend in who told of a sailor who went up to him (Dept Head) and declared that he was gay. My friend said "that's nice, get back to work". That ended that. Spoonman would probably have clutched his pearls and fainted dead away from the thought of thieving gays.