Here's an angle:
She's been banned from Wikipedia according to policies imposed by the legal owners of Wikipedia's servers. This means that she does not have permission to use those servers. Doing so might actually be a criminal offense, depending on the laws in her jurisdiction.
As far as I have been able to figure out the laws in this area probably not. If she was hacking someone elsees acount or using a hack to edit from a blocked IP then it probably would be but not until then.