To help testers report more in-depth errors/warnings through diagnosing issues with Valgrind¹. The alternative is having them build a Debug build themselves and that is:

1. a time consuming obstacle that creates a barrier for entry and engagement
2. documentation on building debug builds is not comprehensive enough

Request mentioned by @huguesdpdn-aerospace in:

• Tutorials on how to use tools like perf and valgrind to increase speed/efficiency and find bugs  DevelopersHandbook#112 (comment)