If someone is sincerely interested in their past history and wants to do an ancestral chart, then fine, knowing the countries that those ancestors came from is relevant. . . but it's not relevant for anything else, and it's more than past time that we stopped pretending that it is.
And no, it is not only the Jews of Hungarian/Romanian descent that come in for some of this ethnic character blasting. In many cases calling someone a "real Yeki" is not meant as a compliment. In Yiddish there is a phrase used to indicate something of an iffy nature kashruth-wise--"Poilishe Pareve"--and no, it too is not meant as a compliment. I asked my mom, whose Yiddish was born and bred in Europe, if there are such phrases for other countries in Europe, and indeed there are.
I checked the calendar and it is 2012. And yet, the old European "trash talk" is still alive and well. Time, more than time, to ditch it. Amazing how contrite we are on Yom Kippur, how sincerely we confess to our sins "ve'dibbur peh," and yet how quickly we revert back to badmouthing members of Klal based on ethnic connections.
We just read in the Haggadah about Klal's being freed from slavery. It is time for that Klal to free itself from its enslavement to ethnic slurs as well.