Just posted something to that effect on Frans' blog...some loose 'membership' system is totallt necessary here - simple Name, Email with confirmation of the email would be sufficient for this and wouldn't be overly onerous on the user posting the comment.

Oh, also allows the user to be notified on further replies (ala ASP.NET forums notification) - which is very handy :-)

I agree, having a required email but not showing it on the page is the best way I can think of. If a person posts using Scoble's email address and Scoble gets a verification of it, he WILL be able to say "not me!". If the impersonator uses the wrong email address, it will be a little easier to see it is not really him.
And I like being able to get emails from blog owners when I reply. The current system here makes that hard.

You totally underestimate my ability to watch thousands of blogs and see what people are saying about me. :-)

Also, if they really fill in a comment with the intent to look like me, they'll put my weblog address in there.

Invariably that'll show up in my referer logs and I watch those like a hawk.

Scoble, even if you have the time to track your own identity, not everybody does. I certainly don't have the time to track every comment on "thousands of blogs", nor do I have the time to watch my referer logs like a hawk. I'm guessing most people don't. I'm looking for away to have a button next to my name in the comments that can verify for a reader that it was really me.

Anonymous proxies are ten a penny also...

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