Comment 1 for bug 1438448

After some consideration, if someone creates enough guest accounts, he/she will drain resources, e.g. RAM, system would crash and if swap space was in use (and not encrypted), then someone (with physical access) could boot into live cd/usb to analyze contents of RAM saved on swap partition. But it could be done easier in another way, then creating a lot of guest accounts. So do what you want with this bug report.