I would like to share my own experience regarding the 1/12 taping.
I admit that I never cared much about Lenny relationship, and Penny was my least favorite character on the show.
However, after converting my husband into a Big Bang Theory fan and dragging him to a taping, I was starting to see the other side.
I have always been an obsessed Shamy fan, I wanted to know every detail about them, and I almost stopped shipping them during the breakup.
My husband's favorite characters are Leonard and Howard, because he is creepy like Howard and has problems like Leonard : low self-esteem, fear of failure, social anxiety, insecurities, etc. He ships Howardette because we had problems similar to the one they had after their bachelor's party.
During the taping, Mark Sweet let people talk about how the show means to them, and which characters they identify with. My husband asked me why no one talked about Leonard, he thought Leonard should be a character that many people can relate to. If he had had enough courage, he would have gone up and said nice things about Leonard. He also pointed out that "socially awkward" in American sense might be different than his, because he would never be able to talk in front of the audience. I told him that the reason might be because people who went up were the minority of the audience, many people probably also did not dare to go up there like him.
I felt the episode was great, I loved the interaction between Meemaw and Amy, I loved Sheldon defending his girlfriend and putting his arm around her. My husband, on the other hand, complained that Leonard was just standing there and walking around with 2-3 not very important lines. He enjoyed the show and laughed at Howard and Raj's jokes though. He was positive that he might see more of Leonard in later episodes, like the Sales Call Sublimation episode.
We argued a lot about the show especially Sheldon vs Leonard thing because he didn't understand why I loved the condescending egomaniac that is Sheldon. I always told him that I love the show because it tells me that it's not wrong to be different, even the weirdest among the weirdos is still fine. He argued that Leonard was also bullied in school, he was the different one in society as well, in fact, most characters on the show were. My husband knew that deep down inside he was different, but he always tried to be normal and tried to please everyone, kind of a pushover, just like Leonard.
I think the reason why some of Shamy and Lenny fans often fall out with each other is because we do not put ourselves in other people's shoes. We do not care about the other ship, so we insult them and their beloved characters/actors. I wish we could have a more friendly atmosphere in this forum.