This is not enabled in default Discourse because it enables massive security holes (anyone with access to it can retrieve any fields in the DB including login cookies for all users), so it’s not exactly a feature we want to spend a lot of time on.
This is not enabled in default Discourse because it enables massive security holes (anyone with access to it can retrieve any fields in the DB including login cookies for all users), so it’s not exactly a feature we want to spend a lot of time on.