<p>I agree that silently dropping the accented characters was kind of unfriendly.</p>

<p>We now auto-map any non-ASCII characters in tags to their ASCII equivalents, pretty much as documented here:</p>

<p><a href="http://meta.stackexchange.com/questions/7435/non-us-ascii-characters-dropped-from-full-profile-url/7696#7696">http://meta.stackexchange.com/questions/7435/non-us-ascii-characters-dropped-from-full-profile-url/7696#7696</a></p>