#1. Ginmar doesn't REALIZE she filed a DCMA complaint. She just contaced LJ Abuse. She doesn't REALIZE that doing that IS filing a DCMA complaint. So she was totally taken aback by the fact that there was this thing filed. She doesn't KNOW she did it, so she thinks Lis did.
#2. Ginmar doesn't have a copyright complaint. She has a PRIVACY complaint. Copyright != privacy. Copyright is almost exactly the OPPOSITE of privacy. Something that's private isn't copyrighted. So, when she claimed that Lis violated copyright, Lis proceeded on the assumption that the work was copyrightable -- NOT private.
The actions that one takes in a privacy situation are almost totally OPPOSITE the ones one takes in a copyright situation. So no wonder Ginmar is upset: she doesn't understand what's going on.
Lis and Ginmar are working from totally different rules sets, because, well, frankly, people misuse the word "copyright" so badly that when someone acutally uses it properly, it blindsides them.
Since Lis has spent so much time with intellectual property (she's got a Master's degree in library science), it didn't even occur to her that someone could be using the term "copyright" to mean "privacy". I mean, Lis's degree is, fundamentally, probably 25% in things that have to do with "copyright" and 25% in things that have to do with "privacy", and she's very aware of how different they are.