It appears that one's full e-mail address is exposed to the Internet whenever one posts to this group because it is a 'Google front end' for a Usenet group. (Oddly, Google gives me a warning to this effect when I try to post a REPLY to an existing message, but NOT when I start a new thread.) There's a nice discussion of this issue at "Discussion>Google Groups Basics>security when using usenet groups" that recommends, in particular, using disposable e-mail addresses (not so easy when you already have a Google account). Yet I see a lot of people using what are apparently real e-mail addresses (masked by Google, of course) on this group.
So my question is this: How have you folks solved this problem (if indeed there is one) and avoided spammers? -- JCW