I did when I saw the first episode of RAW when the WWF logo was drastically different from what it was just a week earlier, I was confused when the two W's didn't have the large F connected to it. And everyone on the show referred to it as the WWE so I had no clue that they changed the name. "What's the WWE ?" "What happened to the WWF ?" Then there was a video of a lady cutting the grass in the shape of a WWF logo then cutting the F off (no pun intended) then setting it on fire to promote the switch from the WWF to the WWE. Then it made sense but I still wasn't used to calling it the WWE. I was still saying WWF for a few months until I heard the new name enough times to where I can say it without accidentally saying the WWF as it's been 16 years since then. But not immediately after it changed, as everything was WWF before that.