I saw that.
x.x.x.x - - [24/Mar/2014:00:14:36] "GET /?register HTTP/1.1" 200 1125 "http://darksend.it/Lzeppelin" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.154 Safari/537.36"
registration attempt: {'addr': u'', 'user': u'', 'txid': u''}
Was that...