I think that should work, I

NickD — Thu, 28 May 2009 20:52:51 +0000

I think that should work, I cant think of anything else you could possibly do without resorting to captcha, I have captcha on my own site for contact forms, and I know it it does a great job, but it just doesnt make me hate it any less lol

Since the site does have

Greg K — Thu, 28 May 2009 14:46:33 +0000

Since the site does have user account, I did modify it so the the rotating log also logs the AccountID if you are logged in, and never removes these entries.

-Greg

I've had similar situations

greg — Thu, 28 May 2009 06:13:00 +0000

I've had similar situations and to be honest there is no real satisfactory options for this scenario, or similar ones, as you of course know.
IP's change all the time, and as you said, offices, governments, schools/colleges etc often use a proxy type setup that shows one IP for all.

Wouldn't it just be fantastic if everyone had a unique, unchangeable code/id to identify them personally! We should be bar coded at birth... Mr Orwell's just turned in his grave...

I think you have pretty much what there is. Well, reliable and useful anyway. You could get browser type/version and OS type/version/SP etc, but as that only allows for a few additional permutations is not really worth shifting all the data it brings.

Without registrations you're just gonna have to accept tomfoolery, what you have is about the best you can do I think.

Although one thing - only allow votes for people who have cookies enabled, as without them on they don't even have to clear the sess you set to re-vote.