Whoa can you please not break the site guidelines like this, regardless of how wrong or un-smart someone is or you feel they are? Taking nasty shots at other users is the fastest way to poison the commons, and entirely unnecessary.
Edit: we've already had to ask you repeatedly not to do this. Continuing to do it will get you banned here. I don't want to ban you, so would you please review the guidelines and stick to them, regardless of what other commenters do?
I think the parent comment just worded it poorly, but is not necessarily wrong.
They were probably just trying to say that a knight's move looks like a straight line of 3 cells in one direction (which includes the starting position of that piece) and then 1 more cell in a perpendicular direction.
