Completely agree as a user. I know this would annoy developers to no end, as their scammy "Load this App and will give you 5 jewels" promotions are a pretty common way to get App store "Popularity" juice, but first, it's annoying within the context of an app, and second, it artificially boosts the popularity of a secondary app that might be complete crap.
Still waiting for the authoritative metacritic/rotten tomatoes of the app store to develop. I'm happy to spend upwards of a thousands dollars a year on the App Store - but, other than trusting podcasts/trusted bloggers, it's pretty damn hard to find anything useful on it without wasting a lot of time and money.