Can Observers Invite Board Guests? Apparently, But... Really?

[Nils Geylen]

EDIT/TL;DR

Can observers invite others? The bots and documentation are contradictory and confusing.

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Was looking at the setting for workspace members to be on x-domain only.

This question on the community appeared to imply that Workspace membership restrictions turned on to "Only specific email domains" only affects team and/or board members, not workspace guests as observers.

(I had always assumed the domain restriction would prevent that.)

I do want observers to be able to join boards, so that's good.

I asked the support bot and it says:

[...] your understanding is correct: the domain restriction for Workspace membership does not extend to board guests (including observers) by default.

Looking at the phrasing under "Sharing boards with guests: Anybody can send or receive invitations to boards in this Workspace" I get confused.

So no, I do not want anybody to send or receive invitations, only team members.Yet the option to turn that on or off says: 

"Only workspace members: workspace boards can only be shared with members of this workspace."

No, I do want boards to be shared with observers, just not have them invite others. So I asked the bot how I need to read this and it says:

You want:

• Boards to be shared with observers (who may be guests).

• Only Workspace members to be able to send invitations (i.e., prevent guests/observers from inviting others).

Currently, Trello does not offer a granular permission to allow guests/observers to be added to boards but prevent them from inviting others.

Really? Is there no way to have observers observe and not have them share it?

[INBETWEEN UPDATE]

Now the "search' bot (not the 'chat' bot!) says:

Observers themselves cannot invite others to the board. Only board admins or Workspace admins have the ability to invite new members or change permissions.

So what is it?

I can't find anything about this in the documentation on observers, the bots are confused, and I assume (!) as an admin I would get a notification if this happens (?) but is any solution to this in the pipeline?

Cheers!