You didn't write the same (are you learning English?) message to them so you didn't insult. I mean the person which posts questions in mailing lists which allready have answers in man pages or FAQ or the mailing list itself is a person which doesn't make research, in that case they will ignore you or if you are lucky they will give you a link to man page, FAQ or mailing list.
cd /usr/ports
make search key=modprobe
You won't see anything in return because modprobe is not ported to OpenBSD.
BTW, reading
https://www.OpenBSD.org/faq/ and
https://man.OpenBSD.org/ will make more things clear. I recommend to start from whatis(1) and apropos(1)