I think this is solve-able through user reputation.
Reputation is not an objective measure.
It's not, but it's a measure, like money, that can help sort high quality/relevant contributions. Phoronix / OpenBenchmarking.org provides an example of how many technical people can provide benchmarks for many component and software combinations, in the mainstream reputation would help for even broader views.
One of the sad realities is that even in the enthusiast market a lot of people don’t know/don’t care to tune and test their system, and there’s a lot of traps that would make the results useless.
There’s some of it that you can check and verify, but things like watercooling or chosing the appropriate RAM configuration and timing will have a big impact.