I complained about this on Apr 26 but was told by R. Tyler Croy and Daniel Beck it was not really an issue. It is an issue. My plugin PR build has now been sitting for 47m waiting for an executor, the build queue has 111 items (https://ci.jenkins.io/load-statistics?type=min says it was up to >210 at one point), and all of our executors are rebuilding core PRs, one of which I see has not been touched since 2012. This is totally unreasonable. We really need to apply this setting at least to core builds, if not everywhere.