With the global parameter I was thinking of the cases when someone has already a monitoring/admin tool using existing stats names, practically this change will break them, requiring to update them as well, which is not always easy.
What you can do is to add a define in `core/config.h`, like:
``` #define KSR_STATS_NAMESEP '_' ```
Use it across those modules/patches and later I can add a global config param to replace it, if considered useful.