WTH can't I delete statistics for an entity/domain, or let HA do it automatically

It would be great if I could delete statistics for an entity that are older than “…” or configure that HA should delete statistics that are older than a defined period automatically. I should be able to configure this on entity and domain/class level.

This would help to keep the size of the database small.

Thanks for your amazing work

Do you mean something like this?

Yes, something like that.

I guess the “purge” service is NOT for statistics.
Purging records for an entity removes “history” data, not statistics.

Is it now already possible to delete statistics?

Not possible to delete LTS - only in Dev tools → Statistics for some cases.