While I doubt the people who ask bad question read the help shown on the side when asking a question:
How to Ask
Is your question about managing information technology systems in a business environment?
Review our list of allowed topics. We prefer questions that can be answered, not just discussed.
Provide details. Share your research.
If your question is about this website, ask it on meta instead.
This help does not actually explains "How to Ask".
I think a little text that explains what "Provide details" means. Or a short "dos and don'ts".
In this post, the person does not provide any data. Sure he wrote some text in his question, but there is no data provided.
Data is not a conclusion. In this case, all the person wrote about is the conclusion that "it still resolves to the old server and not the new server."
That's not data, but rather a conclusion. He provides some hints as to what he might have done: "I have refreshed the cache, and checked the hosts file for the computer."
But does it give us data? We don't know what he did to "refreshed the cache" (Firefox cache for all I know since there is not many program that I know of that actually refreshes the cache - most clear the cache so it can build a new one...).
So I think the "How to Ask" text should at least include a line that reads, in bold:
Provide details on what you did, exact commands and their results.