Ella, I think Visitor Guests can not. However, this icon contest is for DEFAULT (which are signed up but haven't made an avatar yet) and GUESTS both... unless something changed.. but that is what the title says "Default/Guests"....
Don't worry Ella, it looks like about half of the submissions have Visitor text on them.
I think Tin had 2 consecutive posts, one of which being this contest post and the other
saying the Visitor/Guests can now make posts in the questions area. Maybe Tin can
use a different avatar for Visitor/Guests and one for Signed Up Default, and turn this contest
into 2 contests (if the bbs software allows)...
Visitor is fine because visitor means everyone(logged out members, logged in members, guests).
Everyone is a visitor to the site.
saying Guest is not okay because then logged in member with no avatar would say guest because they're not guests.