The website actually started as a sort of joke by someone in the kernel community. Then it stuck around.
For example, I found it useful professionally. We're releasing a new hardware model. We're doing some in-depth performance tuning/evaluation. To understand our performance characteristics, I needed us to break down the performance change into improvement due to new hardware and reduction due to new mitigations.
Linking this page in the Jira issue was the fastest way to get the point across what we needed to look into.
It is not, at all, something I would ever recommend to lay people, or use in the actual shipping product.
For example, I found it useful professionally. We're releasing a new hardware model. We're doing some in-depth performance tuning/evaluation. To understand our performance characteristics, I needed us to break down the performance change into improvement due to new hardware and reduction due to new mitigations.
Linking this page in the Jira issue was the fastest way to get the point across what we needed to look into.
It is not, at all, something I would ever recommend to lay people, or use in the actual shipping product.