I know some very heated discussion is breaking out after the Robert Singer panel at ChiCon. I was there, so was Nightsky, so I wanted to offer a perspective that maybe short tweets cannot.
A lot of fans asking questions were younger fans. Several brought up with Mr. Singer those semi-obscure but very obvious to the fandom issues that he was oblivious to. There were specific issues on continuity and other things that Singer just couldn't address because he is not a continuity hound like this fandom. He's an old school yet very skilled producer that basically makes episodes and then moves on. A lot of these fans with those questions didn't get that.
For example, someone brought up a question that has been pushed around on Tumblr for a while, episode 9.03, aka "I'm No Angel." Since April was possessed and had sex with Castiel, who wasn't, will they ever go back to how that non-consensual act would affect Castiel? Singer, very confused by the question at first, said that they have other character stories to pursue and they probably wouldn't be going back to that one. He told another fan who asked a continuity question (sorry, I don't have it handy) with a smile "Sorry, I can't help you." He didn't remember what she was talking about. He politely suggested to another fan who asked about a dangling plot to come up with how she thought it should go. I don't think the fan liked that answer, but it was hard to tell.
His answers clearly showed the difference between Singer and this fandom. When asked about Bobby Singer and if they would revisit his situation in Heaven, Singer said he didn't think Bobby was being taken to a good place. In that answer though he said, "Sorry, it's just television." I think he was thrown back by the reaction of the crowd over that comment. He did try to back track a little, but it's clear that he thinks it's just a TV show. Is it wrong? Not necessarily, but he didn't seem to understand this very passionate fandom who takes the outcome of the character situations seriously.
Another thing that really got people going on Twitter was the question why they never used "christo" after 1.04. Singer said that they thought it was funny to see Dean say that line, but there hasn't been an occasion since come up where they've needed to use it. I read loads of outrage about that, especially since demons are constantly in the story. What occasion were they waiting for?
All in all, Mr. Singer was polite, happy to be there, and is oh so out of touch with the online fandom. It was clearly a generation gap moment and fans were not going to get hard answers. Singer is old school TV and back when he started, no one obsessed over details in a TV show like this (for almost all shows that weren't Star Trek). He obviously treats Supernatural the same way. As a fan, it's up to you to decide if that is good or bad, but a lot of young fans came out of that panel a little horrified by his attitude. I understood where he was coming from, and it does explain a lot why writers like Brad and Eugenie can get away with what they write.
Let me know if you have further questions about the panel in the comments. If you want to know more, check out the @winfambusiness tweets on the panel or the entries posted on our Facebook. I'm sure it's on Youtube too, so I'll see if I can't find those links later.