Saw a post somewhere on this site from a guy that said a WG had blocked him on AW. So thought I'd have a look and see how its done? Just in case one gets the arsehole for whatever reason?
So put block member into the search box on the FAQ tab. The answer to that was:
How do I block/unblock members or view my blocked senders?
To block a member, click to view an email or booking from them, then click on Block Sender.
Done that to a few received emails but no link to block member?