I can explicitly force links to open in a tab if I want, in SeaMonkey (Gods, why didn't they just keep calling it Mozilla... c.c) but people overuse the ability to open links in new windows, I think. It's okay when it's done for a good reason, but there are few good reasons to usurp my ability to use my forward/back buttons at will, and most uses of it are not appropriate in my opinion. I would consider its use in a link from LJ to be barely appropriate at best.