"Just Google it" is a valid (albeit dickish) response for top level questions that could have been typed into a search bar instead of a post title field and they would have gotten the answer right there. That's about it. It's definitely a weasel move to say "just Google it" instead of supporting your own assertions.

Edit: emphasis added to clarify that in my example, a search would have in fact answered the question immediately. I am aware of how shitty search is now