So, I think there was some good discussion in the comments to your question (most of which you disagreed with), but let's try and drill down a little further and see what people were getting at:
Your original question was:
Are there examples of one such easter egg being found in a game years later its release?
To which Mana responded:
This question is very broad...any valid answer would have to be updated pretty much every week
Raven went on to clarify
don't see a possibility for any real answers to this question
Now I can see where you're coming from:
If there were no real answers, how did it get answered? and I think this is a good point. Raven wasn't being very clear, and neither was Mana. Now that might be because they're long standing members and for each of them what they said was enough to explain the idea they were getting at, so allow me to elaborate on what I think they were trying to say:
Every easter egg is an equally valid answer to this question, so no one answer can be considered "THE" answer
I think this is a good point. On a serious question and answer site, there needs to be an Authoritative answer. Something people can reference as the correct answer to a question. This can be tough as many questions are open ended, or vague. Now obviously you weren't looking for a complete list of all Easter Eggs every found ever (or even unfound), you just wanted an example of one (and you got a REALLY good example). Unfortunately, the example is not authoritative. I cannot point to it as the answer for people searching for easter eggs.
I realize this was a mild curiosity for you, and your life is enriched for the experience, but for a site trying to be a serious Q&A site its just not helpful and, in fact, its kind of detrimental. It establishes a flavor of yahoo answers; a brand the site is trying very hard to avoid.
Now there is also a separate issue here. Your question got closed without protracted discussion.
That's largely a result of this site being community run. Much like wikipedia, what is created and destroyed is handled largely by the community and not by moderators. Since we're dealing with a broad community we cannot just legislate how long a discussion must progress before a vote is cast. Instead, we allow people (who have demonstrated sufficient involvement via rep) to vote when they feel it is appropriate. Five such people felt closing your question was appropriate.
Now I understand you disagree with them, and the proper forum to discuss such disagreement is here on meta, but you cannot scold the overall community for not allowing a protracted discussion; well you can, but nothing will come of it.
If you'd like to discuss more on why this question was closed I'll try to help you see the opinion expressed by the members of the community (though I did not close it, I would have had it been open when I found it).