I'm all for adding more information, as long as it's legit like '100% comes from miners' and such; funny, informative, making the page a bit fuller and more similar to previous 'taint analysis sites', and - most importantly - true.
Why stop at 100%? I used
blockdata to check all cummulative transaction fees (up until block 744341). It turns out 256,732.07240401 Bitcoin was paid in fees! With slightly over 19 million Bitcoins mined, that means 101.34% of all Bitcoins currenly in existence came from a miner

Even better if you trace back an exact percentage for each individual input
