First, I am an active senior NCO who bleieves DADT should be repealed on principle. It bothers me not a bit if open gays and lesbians serve.
One aspect of the debate that gets lost, however, is that fact that a lot of people take advantage of DADT's quick and honorable discharge.
The big "scandal" a few years ago of the "Arabic translators" who were kicked out was sold dishonestly. A colleague of mine was an instructor at the Defense Language Institute at the time, and what happened was that a bunch of students figured out that they could get the Army to teach them Arabic, then they could "come out" just before graduation, get an almost instantaneous discharge then sell their newly acquired language skills on the open market. So they did.
My colleague says at least some weren't even gay, but since the only burden of proof is a declaration they were good to go. I also had a roommate who was gay who used that fact to get an honorable discharge when her flight school application was not approved.
Are these exceptions? Possibly, but who can really say. As I said, I believe DADT should be repealed mostly because I see nothing wrong with gay people serving, but I'd also like to see this easy discharge door shut.