After approving a tag edit, I realized it was a copy of an article of Wikipedia. The editor did the same on another tag, and I see in his history there are other cases.
In both cases, there is a link to wikipedia on a term in the tag description, but no real attribution. I don't think the Wikipedia license allows that.
Do you think it's ok here? If not, it should be enough to revert the edits and tell the editor to stop copying. Or, alternately, to give proper attribution, as the Stack Exchange license seems compatible (CC-BY-SA 3.0).