Possibly but it's also a public service to warn people that if they come across a file that says URGENT LIMEWIRE SECURITY PATCH or somesuch... it's probably a virus.

I've long thought that there should be some official way from LW to communicate to users for security reasons and to fight P2P spammers. I also think that given the amount of people out there who don't know how to configure their files and end up sharing everything, they need some occasional reminders to doublecheck.