Medicine is a SMALL, SMALL community... if you piss on someone, some is going to splatter right back on you... same in almost any system... that's why bats help each other out instead of going bat crazy and eating all the insects (Frugal got some discounted books at a garage sale about the wondrous world of mammals). That is why you try to live a good, honest life. Everyone needs to be treated with respect... if they interview you, then you at least impressed them somehow to get an invite. If you floundered while you were there, then obviously they are not going to tell you because you hung yourself rightfully so. Of course, you cannot always live up to other people's expectations and be generic. Interviewing is like dating except Hal the NRMP supercomputer decides the love of your life for the next 3 years.
Sit back, relax, and be yourself at the interviews. We all have worked hard, and an exciting and trying time is ahead of us very soon.
It's amazing how people complain about everything... if you went to get a job, it is going to be secretive. If you try to date someone, then it is going to be secretive initially. The world is a fragile place... you can barely say anything these days without offending anyone. If you march in there and be a genuine person, almost nobody can fault you for that. If they do, then it is their loss. The match is a nerve-inducing experience, but so many variables are outside of your control. You can only worry about so much.
Overall, I think we should all be thankful for the current match process because it at least tries to be fair... which of course we must remember is only a place to have fun. We also need to remember that programs have the right to select whom they think would be a best fit. Everyone is looking for someone different. The whole process reminds me of:
http://www.nytimes.com/2009/06/30/science/30firefly.html?_r=1&em
I'm a big believer that if you lived your life right (whatever that means), then good things will come your way.
Best wishes!