One issue I see with suggestions is that everyone thinks their a designer. What they suggest might even be an improvement for that one small tool but would make the overall experience less intuitive. Overall, I think OSS should cater to their existing users plus a little bit more. Make the experience better for the people who really want to try to use it but eventually give up in frustration. Over time, it will improve and the user base will increase.
One issue I see with suggestions is that everyone thinks their a designer. What they suggest might even be an improvement for that one small tool but would make the overall experience less intuitive. Overall, I think OSS should cater to their existing users plus a little bit more. Make the experience better for the people who really want to try to use it but eventually give up in frustration. Over time, it will improve and the user base will increase.