sigh I spend time answering emails describing the difference between "web site" and "application". No, my customers would not benefit from an RSS feed, thank you.
Asking my mother has its own problems: "It's wonderful, dear. It would be even more wonderful in teal."
Its at that point where I think "If I were hiring myself as a consultant to read this feedback and search it for actionable insights I would bill myself $100 and report 'Sorry, there is nothing useful here'." Which makes paying $7 and giving a somewhat more diverse set of people micro-tasks pretty darn appealing. I can give them actual tasks, they will perform them because I am paying for completion, and I can analyze the results.
Just like you would pay someone for surveys. If you pay, you are gauranteed to get feedback.
A+++++++ would use service again!
If it's a product that already has a bit of traffic, I could just use a service such as UserVoice to take care of feedback/suggestions by using their little Feedback tab script. Posting about the site in a blog or a forum can also help in the search for getting feedback.
Basically what I'm getting at is.. why would I pay $7 for Feedback Army when there are so many free alternatives?