I'm not sure we have any rules against it, but at the very least, it is bad netiquette.
mind you, Lucy content does seem to be rather scarce so it doesn't really matter tbh
It's getting to the stage where she pops into Eastenders at most 2 or 3 times a month, not that her scenes were/are ever all that noteworthy
that said, I believe she's on bebo/facebook/myspace < - one of these yolks