We, the developers, understand the line. I actually found it very funny - not rude at all. Just that your portfolio will hopefully be viewed by all kinds of people. They might not get the inside joke :)
As a geek I like that graph idea, how useful might it be - don't know.
Well, I thought about it this way: Let's say I'm a person with a lot of those colorful bars on my portfolio. And I landed on this guys site who is saying, Sorry no bars!
I'd get a pinch if I'm a sensitive person.
And you brought up and important point. I need to think about the content from the perspective of a general viewer. And hopefully, it'll be viewed by a few geeks someday as well :P
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