Ah, but you see, by copying text
out of a source
that has already been approved
by various means, it's more likely to be good
, and more likely to be accepted by other noders
and voted up
by people who give a care
about those sorts of things.
By writing your own stuff, you open yourself up, make yourself vulnerable, for people to express their disapproval by downvoting, and heading down the road to feeling useless and depressed and suicidal.
People do have the best of intentions when they do such a thing. (or at least usually) That doesn't make it right, doesn't change the fact that it's not wanted. Just a change of perspective here...