Well, he's right, our guidelines pretty clearly state that the forum is for asking questions / discussion.
If you think the instructions don't mention something important, improve the instructions. That's why it's a wiki. And that's also better for helping people, because the one thing they're going to have to read is the instructions. They have no way of knowing, in advance, to search for your tiny little post that's going to fade away and see it's extra tips.
Simply put - don't mock people for pointing out the guidelines for you. It's your own responsibility to know them, you agreed to in exchange for having posting access to these forums, and if you really don't care about them that exchange can be nulled.
Thanks, and have a nice day.