Hi Aus Dave,

Thank you for the input.

I am not much worried about Link or review Spam, as I require user registration and also email validation before they can submit any listing. (However your filter plugin suggestion is wonderful, and should be very useful if we change the link and review submission method) So it is easy to keep that in check. However to keep the site interactive asking user to register before they can vote for any link just makes them mad and creates friction.

In addition, Link Rating spam is soo easy with GLinks and there are many benefits of doing it. As almost all GLinks site have Popular/Top links page and only certain number of listings are being displayed there. So for playing with the current link rating security hole, the spammer actually get rewarded by being on the top of popular page and gets the reputation of being a legitimate web site.

Hence I request the Captcha type feature as that is likely to stop all-most all automated spam which normally accounts for over 95% link rating spam.

Vishal

Vishal
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