This seems to be a rip off of https://www.commandlinefu.com/
In fact, I just checked a few commands and descriptions on this site, and they are identical in formulation of both the command and the description.
Also, one of the first commands on this site is:
New Maintainer for CommandLineFu
>_ mail tech@commandlinefu.com
Why would it even mention this other site's name here unless it was a complete copy/paste of the commands from the other site?