Personal responsibility seems to be missing from all of the people
complaining about a list infecting them or somehow causing them harm.
Get over it.
We use Microsoft products as well as other products and we have very strong
security policies -- firewall, server antivirus, blocking attachments,
client antivirus with updates three times a week, automated patching, etc.
In short, we take responsibility for running the software we use. Te expect
a public mailing list to "protect" you is similar to expecting the
automakers to "protect" you by steering your vehicle for you.
Mark Challender, MCSE