From Newsgroup: alt.bbs.synchronet

I'd like to disable the requirement for sysop feedback.

Following https://wiki.synchro.net/faq:misc, I checked that Nodes->Node n->Advanced Options->Validation User is set to "0", but when creating a new user account I get:

---
As a new user, your access to some of the system's facilities will be
restricted until the letter you are about to write has been reviewed by a
sysop and your account has been "validated."

Please include in your letter:

        o Where you found the address or phone number of this BBS
        o What prompted you to call/login
        o What your expectations are

Unknown user

You must leave DELETED USER mail in order to be validated!
---

...and then I am disconnected. This is running v3.19 on Linux (via https://hub.docker.com/r/bbsio/synchronet).

Any idea what's going on here? There are a couple of deleted test accounts in the system. The new user I'm creating does not match the name of a deleted account.
--- Synchronet 3.20a-Linux NewsLink 1.114