2009/7/24 Gregory Maxwell <gmaxwell(a)gmail.com>om>:
Eh, backspace isn't much of a difficulty. It
could probably also be
made to only trigger for text over some particular size. You're not
likely to have a legal obligation for a couple of words, but if you
copy several paragraphs you'll have both a legal and an ethical
obligation to provide some form of attribution.
I don't think it is a good idea to have a computer making judgements
on substantiality.