People are not required to read the forums.
And some people are just too lazy, or don't know where to look. You do not have to put them down for it.
Exactly, that person may be new to the LO Forums and has received such a warm welcome.
I doubt he will come back to LO Forums any time soon.
There is no need to facepalm or put someone down, you have all been "noobs" at some point and I am sure you did not like when others made fun of it.