Like linux, bandicam is good for recording because it uses vary little space, and when you record a video, upload it to Youtube and then delete that video of your computer.and youre good to go
Also a lot of people don't have a good enough PC to record, nor want to put time into recording, compressing, uploading, and reporting. It's quite time consuming unless you do it enough times to get a system going. Not to mention, by the time you report the hacker, he probably got bored and left the server anyway.