It is regularly suggested that Firefox should have something like WOT (Web of Trust) for verifying the trustworthiness of websites. People often propose this as a replacement for the SSL model of identity verification (although SSL says nothing about trustworthiness, only more or less about identity) or as a replacement for Google’s list of attack sites and web forgeries.
A friend of mine recently wrote an interesting and informative blogpost. I sent a link to another friend today, who viewed it and then replied back:
That site has a truly dreadful WOT rating – who did he upset?
And a small amount of thought about that, my friends, will tell you why WOT is unsuitable for Firefox.