Sounds similar to uservoice. The utility of it really depends on the quality of the users. For example, if they're entering bugs and voting on each others' bugs, it can be useful.
But if they're suggesting things for which there are difficult tradeoffs without considering the implications, then it's not very useful. For example, requesting that stripe make their credit card processing free is not very useful feedback, but you can get a lot of these 'I want a pony' kind of requests.
But if they're suggesting things for which there are difficult tradeoffs without considering the implications, then it's not very useful. For example, requesting that stripe make their credit card processing free is not very useful feedback, but you can get a lot of these 'I want a pony' kind of requests.