Okay, a friend of mine is getting consistently harassed by a few certain people on her Yahoo messenger (version 5.6). She adds them to her ignore list, but somehow they seem to be able to get around it. Sometimes the names disappear from the ignore list, but typically they don't disappear, more that the list is simply ineffective in their cases.. As near as I can tell they run the standard Yahoo clients (they aren't malicious or anything.. just stupid kids nagging her to strip on cam which she doesn't do and doesn't want to hear about). These people don't strike me as being very bright on the average, but they obviously know something I don't.

There, now that the background's been filled in (perhaps more than you cared to know)...
I'd like to know how they're bypassing her list and how I can stop them from bypassing it. I really don't like the idea of crashing their machines, but I haven't got much recourse other than that at the moment. Any help would be very appreciated.

-Zen