I happened to not be logged in when I clicked on one of those 'this is interesting' posts, so fortunately it didn't steal my password or update my journal, but DON'T click on one or you will need to change your LJ password and it will put one of those 'this is interesting'posts on YOUR LJ for people to be tricked by, too.
If you're one of the unfortunates who unknowingly clicked on that stupid LJ spam link, go here to
brighidestone's lj for advice on how to clean your LJ.
.