I've noticed that if I middle-click on a forum link on the main forum page (it doesn't seem to affect sub-pages), it opens a new tab for the forum as usual--but it also advances as if I'd left-clicked on the link as well, preventing further middle-clicking. This is annoying when I'm trying to get caught up on my reading. Why is this happening?
EDIT: this also affects subforum links and thread links, but not, say, the wiki link.