I was having a conversation with a friend at lunch, when I started putting ketchup on my hotdog. He looked at me and incredulously questioned, "really? What are you, like, 8 years old?" I had never even heard of the idea that "only children put ketchup on a hotdog." Yet here was someone I had originally thought of as a rational human being elevating it to a serious issue.
A lot of this stuff gets defended as "just a joke", but I don't see anyone laughing. If you're so bad at making jokes, maybe you should just give up the practice and stick to being generally pleasant to be around.
I guess I'm lucky that I'm not famous enough to get any randos following me on Twitter. The people who follow me are interested in my work, they aren't hero-worshipping me. I get to have excellent conversations with people on Twitter. But that is only because--even though it's not 100% in my control--my lack of celebrity allows me to guide and design my Twitter sphere. For a celebrity, they just get inundated with folks they don't want to hear from.
Just read the replies to Notch's tweets sometime. I'm surprised he hasn't become a complete recluse. Almost every single one has some 13 year old complaining about "Minecraft sucks now that you're gone", even though he's been gone longer than they've been playing it.