Good find - looks like the same is true for me - a user (in my case a live and active user until a couple of weeks ago) who had in the distant past acquired a suspect_user status.
I think this user has probably found themselves unable to use the forum since I switched on the approval of new users.
Joined Apr 9, 2021 Last Post Apr 16 Seen Apr 16 Views 1311 Trust Level member
Stats 78 days visited 4h read time 3m recent read time 83 topics viewed
491 posts read 6 given 31 received 4 topics created 25 posts created
Wading back through my review queue, I see no items on that date, and no items with that username.
Edit: very odd, that suspect_user date is some 9 or 10 days before the user’s join date.