Well then, let me ask you this. According to your view, why should any of us worry about key stroke recorders? If we are not owners of our computers, we should assume key-logging? And if we are the owners, we already know what we are typing.

What about distros like Ubuntu and it's varieties? You own it, it's yours, but they keep root access somewhat difficult to use. Some innocent newbie could be running a hacked version of Ubuntu, and not know their xev's are being watched.

My whole point being that any type of keystroke recording on linux, is possibly nefarious, and people should look at how it's being done. The first line of defense is awareness. I pointed it out, because the euphenism "keystroke dynamics monitor", glosses over the true nature of what it's doing, and many monks may have passed by without looking.