Anyone who has bothered to memorize the meaning of that idiomatic, crypic phrase won't be anyone who needs to be told what it implies in English. Anyone who hasn't, will.

Let's try to drop the elitist jargon, shall we? It serves no purpose in this case, and little purpose in any other case.

You might have noticed the first part of GrandFather's reply was an easily understandable, plain English question. Hopefully we can at least give the poor, naive question asker the benefit of the doubt in his ability to read.

As for serving no purpose, I guess that depends on who the purpose is intended to serve. It may not help the original poster much, but it should help other potential responders. It's like raising a red flag for other qualified help representatives, saying, "we have seen this type of thing before, please look to your previous experience to guide you in helping this individual." Was that plain English enough for you?

Let's try to drop the elitist jargon, shall we? It serves no purpose in this case, and little purpose in any other case.

While I disagree with you on this, indeed he may have at least put a reference to XY Problem for those not familiar with the jargon.