Between 2016 and 2021 the share of ML/ robotics/ AI researchers being reproducible (ie contianing code and similar instructions to reproduce) doubled [1].
The major US labs have gone largely closed source (I.e. they no longer publish frontier research) but the Chinese ecosystem has incredibly reproducible code.
This is field dependent obviously but I think it atleast gives reason to be optimistic.
Yes people will churn out fake slop research, but it feels like that can be categorized and then ignored.