We can't win!! CONSTANTLY we're told "search before you post", so this chap searched and has been berated for it.
I don't know if you meant that seriously, but if you did, the point of "search before you post" is to find out if somebody else has already
answered the question you're about to ask. In which case you have no need to post at all.
That's a little different from finding the same question asked four years ago without an answer and adding "bump." Not that that
doesn't work, just that at that point re-asking the same question isn't necessarily a bad idea. Or at least saying "I was trying to figure this out, too--any suggestions?" (Of course, had the OP been asking a detailed question with a lot of background information, bumping with another plea would have made much more sense, since it would save re-typing the same explanation.)
Not trying to start an argument here, just pointing out that the "search before you post" admonition falls under the banner of general rules not hard-and-fast laws.