Anyone know who or what sputnik (l/c) is? I've only seen it in robot or suspected-robot UA strings. There's also a SputnikImageBot which may or may not be related, not that I particularly care.
On closer inspection they all seem to be identical (various events over the past year):
Mozilla/5.0 (Windows; U; Windows NT 6.1; ru; rv:220.127.116.11) Gecko/20120306 Firefox/3.6.28 sputnik 18.104.22.168
:: insert tangential discussion about why my old-browser rule is expressed as "Firefox/(3\.[0-5]|[5-7])" with holes for 3.6 and 4 ::