Re: who the fff... put Troi in that outfit??
I've heard it said that the costume actually makes professional sense. Putting Deanna in an outfit where her rank isn't thrust in the face of her patients. If they were contstantly being reminded (by the uniform and rank pips) that they're being asked to 'fess to a woman who is their Commander as well as their counsellor, a junior officer might be less willing to go to her with their troubles.
That was my take as well.
Imogene, get serious! Who do you think you're talking to?! I've known you for 27 years, and all I can say is, if God was giving out sexually transmitted diseases to people as a punishment for sinning, then you would be at the free clinic all the time! And so would the rest of us!