Why can't I see Guest's activity log?

[Hadey (Manager)]

I have a business class plan that has 30+ guests and 0 members.

I recently invited a guest to a board. Upon joining, he archived a list and deleted a card: https://prnt.sc/u8jhrm. 

I have no idea which list he archived and which card he deleted...and I'm the admin. I went through the settings and looked through "Archived Items" and can't find the items.

What's going on here? Why can a guest archive and a list/card and I'm unable to recover it?

[Iain Dooley]

@Hadey (Manager) Board members have full access to the board the same as any other member. You can restrict the ability to invite members to admins only, and non-admin members can't close the board, but there's no notion of members vs. guests when it comes to boards, only teams.

Anyway, you can see archives lists in the board menu, you just have to click "switch to lists".

If a card is deleted (rather than archived) you can't see any information about it anymore.