As someone who has extensively worked on a Redis fork at AWS and worked with the company for 6 years, I wouldn't worry about Redis merging stuff from Valkey. We believe they refused a huge number of PRs because we believe it would have messed with their internal features. (We can't prove this, because they never discussed it publicly). One of the main reasons I started contributing to Redis was to help my team at AWS get out of the business of merging conflicts.
> Interestingly, there have only been two commits from a single developer to the Redis repo in the last two weeks since the license change. A huge decrease.
It's just a guy from Redis. It's not even one of the three former maintainers (Oran, Yossi, or Itamar). The number of open PRs is also dramatically down (it was around 550 when I last looked before the fork, since I've gotten a lot of notifications from old PRs of people refusing the CLA).