hacker.org

I've found 59 (50 of them are only differences in letters) differences to the original text. Is this correct? Could I PM someone who has solved this to verify if I got the correct differences?
Are spaces/newlines important?

Since it is a Wikipedia article (as mentioned in this thread), the differences are irrelevant.
Here is a tip: Always in Didactic series, you use some knowledge or method used in a challenge to the next one.