Initially it was postings and sig links now its hacks to browser user agents. See the full story here.
http://www.f-secure.com/weblog/archives/00001684.html
Not sure if this hack is limited to mozilla browsers or all browsers. FF has had a user agent plugin for years.
Full Version: A new spam trick
QUOTE (jaclaz @ May 20 2009, 03:54 AM) 
WOW!!
Excellent link... Pinouts and the whole 9 yards...
'Proper technical terminology', with "web stuff" and "technical stuff", "1394 folk", etc.
Plain words, for folk like me..
Thanks.
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