If he provided a source, AFAIK it isn't plagiarism. As I've mentioned in my reply to nullius, it might be deemed low value (specifically low value automated translation spam; that is if it was an automated translation of non-english content).
Added an edit / clarification to my reply to nullius as well.
1 of the users shared these quotes.
-quote snip-
Indeed he did. However, if a user clearly provided a source he got the info from, it's a bit difficult to argue he's trying to pass the content off as his own.