I like being able to click on a banner to insert someone’s name, but if it doesn’t actually link to something (like their “player” page or a private message or notify them somehow), then it shouldn’t bother including the “@” sign.
I like being able to click on a town or vertex on the map to insert a link to that spot into chat. I would like it though if the whole town name or co-ordinates were the link/click-able instead of just the flag icon.