Jeffro:

It's amazing how well most plugins work with WP and other plugins. Sometimes I'll find a plugin that conflicts with another or doesn't work as advertised. In that case I look for another plugin and most of the time find a different one that works. One could argue to leave well enough alone.

On the other hand, WordPress has become increasingly popular as a website software. More and more online businesses are using it for their websites. As a business owner, you'd like to be assured of some level of quality because when you're site is down, you aren't making money. From this perspective you could argue that there should be a review process.

Maybe we should look at it as a tiered plugin repository - quality reviewed plugins and non-reviewed plugins.

Should plugin reviewers be paid? If so, why not pay the theme reviewers?

Maybe theme and plugin submitters should pay a fee for reviews?