How much do I hate plagiarism? Very, very much. I hate plagiarism a whole lot.
I hate inadvertent plagiarism, even.
I have a paper. The student cites a crappy web thing at the end (but nowhere in the body of the paper). So I look at the crappy web thing, and lo, the student has picked up phrases of crappiness. And, of course, the crappy web thing doesn't cite its sources. And the paper's basic argument pulls a lot from the crappy web thing.
The student cited the crappy web thing in the works cited, so I'm guessing s/he intended to use it appropriately.
I know I've talked about plagiarism in class. And in the assignment, I note that any source the student uses (the OED, for example) must be cited.
And yes, the student cites the OED in the text, appropriately.
Dog, I hate plagiarism.
Why do students use crappy web things? There are pretty decent web resources around, but for some reason, they usually use the crappy ones.
(Yes, I hate the sort of plagiarism that copies whole papers without citation of any sort even more, but at least I can reasonably take those to higher levels. This sort, well, it doesn't quite seem appropriate to try to get a student expelled for being stupid, does it?)