hmm, you think the PDs would talk about you if you just came off nervous and didn't interview well at one program but did great at another? would that adversely affect their impression that you came off stressed and less articulate at other places 😱😕
at least I have a pretty gerenic name
"Gerenic"?
All I know is what I know, and I know that my PD mentioned certain applicants to other PDs, and that some PDs are downright weird (one of whom was "likely" mentally ill, in some manner, in my PD's opinion). You can minimize it, but, hey, do what you want to do. If you sweat like you're in a sauna, if you speak in a bizarre way, if you get drunk on one beer, but always have that beer, if you can't keep an inappropriate joke to yourself, then you have at it. "Anecdote" is not data, but, still, do you want to be known as "that guy"? It's not just the person that looks uncomfortable or has a badly tied tie.
Whether you're in LA, the Bay area, NYC/NJ, Chicago, or Detroit, or even between Duke and UNC, or Pittsburgh, or Boston (and I know I'm missing others), all politics is local. And, likewise, EM is a small world. I can get a visit in the office without an appointment with the chair at Mt. Sinai and Loma Linda. There are others here in the same boat. People are people, and, if you do something egregiously stupid or unacceptable (not just interview badly), one PD may, while speaking with another PD friend, mention it. Look at SDN - how many threads are there about interview trail incredulities?
On the flip side, there are two SDNers from several years ago that were actively recruited, and PDs talked about them and about who could land them - Jeff698 and Tyson Cook (not to stoke any egos).