LOTR tag wiki has a long write-up that ends with "From: The Lord Of The Rings on wikipedia". I didn't check whether it was fully copy/paste as the sentence seems to imply, but in general; is simply copying a long couple of paragraphs from Wikipedia OK for tag wiki texts assuming it's attributed?

Assuming that you could make a nice tag-wiki simply by pasting and editing content from Wikipedia, is there any problem with doing something like that? There are a lot of empty tag wikis that would be better off with default content from Wikipedia rather than an empty wall. This would at least ...