Some people are weak minded, indeed. For instance, I recall when I saw MoS for the second time in theaters as I was walking out of theater after the film had concluded, I heard a girl say in reference to the ending scene with Lois and Clark at the Daily Planet: "So, he just puts on the glasses and she doesn't know who he is now? How stupid."
I couldn't help but facepalm. Apparently, she missed the entire part where Lois tracked him down to his residence and found out his name is Clark Kent, failed to see the dual reference in the statement "Welcome to the Planet," and didn't see them smirk at one another as the film faded into the ending credits.
Lois knew exactly who he was.