I wonder if a new product that would be similar to UserVoice or Fixya could help for this problem.

Imagine a site that has elements from the above mentioned and also StackExchange or even the Apple Discussion boards. The input would be people reporting bugs they encounter: is it reproducible? known workarounds? maybe severity ratings. A "page views" count.

The output would then be either selling or giving away aggregate reports to vendors, like Apple. "Hey Apple, here are the most important bugs people are reporting. We suggest you fix these first."

If anyone has interest discussing this further, get in touch.