I got a few of them awhile back. Reported the user as a spammer.. Also were a few LJ accounts advertising random sites (an alternate facebook-like site but aimed at Australians). Reported that too. Bit odd.
I'm getting a lot of spammy comments as well, and I reported the first few as spam- and now, all the spam I'm getting are as anonymous comments. So...can't do much other than delete them. ARGH. I don't want to go to friends-only but this is pissing me off. >:[
Np.. Still spammed? Not sure then. That's all I had to do to stop from getting spammed myself.. and the reporting of spammers.
I guess you could send a msg to livejournal.. like through the feedback/contact us section? But yeah. Not sure that'd be much help. Maybe you could ask what other options there are.
Did you also know that if you type ww instead of www when entering the livejournal address you get the site in russian? I've never tried it intentionally, but the fre times I made the typo I got it in russian...