These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Superman: Birthright
Dude, Not Funny!: Apparently Lex finds a great deal of humour in informing Superman that his homeworld is gone and that he is all that's left of his people. He even takes a picture of his face so he can capture the moment.
Older Than They Think: The idea of Lex and Clark being friends in their childhoods has been around much longer than the TV series Smallville but new readers might believe this is a Canon Immigrant. However, Lex's dad on the other hand does resemble Lionel Luthor from the series.