Why? What's the worst thing that could happen from poor quality input? Unreliable scores? These reviews don't mean or do anything in the real world, and it's much less serious than an actual IA complaint. There's also no evidence that there would be enough poor quality inputs to make a meaningful impact on scores.

You really should wait and see before you invest a ton of time and money into solving problems that end up not being problems.

>Why? What's the worst thing that could happen from poor quality input? Unreliable scores? These reviews don't mean or do anything in the real world

If you are actually operating under the assumption that the output doesn't matter at all, then implementing the review system in the first place is a waste of effort, let alone any features thereof. But assuming that we do care about the output, its quality does matter.

>There's also no evidence that there would be enough poor quality inputs to make a meaningful impact on scores.

In pretty much the same way that there's no evidence that any given new website needs to worry about sql injection.