[Doyley]

I've not seen an Wordpress ones, although I have heard of them. I happened to stumble across the Joomla one.

I know Wordpress have a user rating system which is pretty good in my experience.

[brador]

The problem I find is most users who leave a rating don't read the code, just the features. Ratings can be faked too...

[Doyley]

Yes, this is true. Nobody really knows how many of these contain elements that should not be there. I can't think of a concrete way around it that's realistic. But I think user ratings on an official site are a good thing and are normally fairly accurate.