I don't like it, you get the list, then have to click through to the persons wiki page, and the box looks out of place on my wiki. Soz, but an actuall list here would be easier, or a wiki page that listed the tags without having to click through to each persons profile -this would work as anyone could edit the page to add their info.
edit: like the xbl wiki page
XBox Live Gamertags - Freddy much easier to navigate.