In this question, there is some editing to "fix" the question. However, there is no explanation of what is wrong with the original question. It sort of looks like there was a comment that has since been deleted or a chat discussion that was never linked.
The original question had a single answer: farm the six uber bosses to get a Hellfire ring. That is pretty much the equivalent of the first example given in the question (the Pandemonium Event). That seems like a good use of the expertise of the site. People who know both Diablo 3 and Diablo 2 should be able to answer that question. Not everyone played both games and not everyone who plays Diablo 3 knows about all the potential end game activities (as evidenced by the question being asked in the first place, not to mention fbueckert's response).
The two edits of the original question have essentially butchered it. It's an entirely different question now. It's not even a consistent question, as twice it indicates that the poster is looking for things to do after beating Inferno and the final question asks for things to do besides beating Inferno. The original question is sort of included in the new question, but list questions produce much more shallow answers.
We still don't have the actual answer to the original question. What is a Hellfire ring? How do you farm a Hellfire ring? What are the steps? Is it difficult? Those are questions that were implicitly included in the original question and should have been answered. As such, the original question was a duplicate of How can I craft The Hellfire Ring? (which bizarrely was closed as a duplicate of Where are the key wardens and where are my keys? which only answers part of the question).
My main point is that it is frustrating to come to a question like that and only read half the discussion. How to engage in a discussion that you can only half read? Apparently fbueckert had concerns about the original question. What were they? Could they have been addressed by a much smaller edit that preserved more of the original question?